Crosswalks Between Knee and Hip Arthroplasty Short Forms: HOOS/KOOS JR and Oxford Reviewed International journal

Polascik BA, Hidaka C, Thompson MC, Tong-Ngork S, Wagner JL, Plummer O, Lyman S.

Journal of Bone and Joint Surgery   2020.6

Dislocation Following Anterior and Posterior Total Hip Arthroplasty in the Setting of Spinal Deformity and Stiffness: Evolving Trends Using a High-Risk Protocol at a Single Tertiary Center Reviewed International journal

@Sarpong NO, @Rodriguez S, @Kuyl EV, Lyman S, Della Valle AG, Vigdorchik JM, Rodriguez JA.

Journal of Arthroplasty   39 ( 4 )   1019 - 1024   2024.5

Defining Patient-relevant Thresholds and Change Scores for the HOOS JR and KOOS JR Anchored on the Patient-acceptable Symptom State Question Reviewed International journal

@Dekhne MS, Fontana MA, Pandey S, Driscoll DA, Lyman S, McLawhorn AS, MacLean CH.

Clinical Orthopaedics and Related Research   482 ( 4 )   688 - 698   2024.4

Robotics and Navigation Do Not Affect the Risk of Periprosthetic Joint Infection Following Primary Total Hip Arthroplasty: A Propensity Score-Matched Cohort Analysis Reviewed International journal

@LaValva SM, Chiu YF, @Fowler MJ, Lyman S, Carli AV.

Journal of Bone and Joint Surgery   106 ( 7 )   582 - 589   2024.4

Patient Selection in Randomized Controlled Trials of Total Knee Arthroplasty: A Systematic Review Assessing Inclusion Criteria Reviewed International journal

@Beiene ZA, Tanghe KK, @Neitzke CC, Hidaka C, Lyman S, Gausden EB, McLawhorn AS.

Journal of Bone and Joint Surgery   106 ( 6 )   553 - 563   2024.3

Does Computer Navigation or Robotic Assistance Affect the Risk of Periprosthetic Joint Infection in Primary Total Knee Arthroplasty? A Propensity Score-Matched Cohort Analysis Reviewed International journal

@LaValva SM, Chiu YF, @Fowler MJ, Lyman S, Carli AV.

Journal of Arthroplasty   39 ( 1 )   96 - 102   2024.1

Freeze-dried noncoagulating platelet-derived factor concentrate is a safe and effective treatment for early knee osteoarthritis Reviewed International journal

Ohtsuru T, Otsuji M, Nakanishi J, Nakamura N, Lyman S, Hanai H, Shimomura K, Ando W.

Knee Surgery, Sports Traumatology, Arthroscopy   31 ( 11 )   4716 - 4723   2023.11

Improved responsiveness for JKOOS+ compared to KOOS in Japanese patients undergoing total knee arthroplasty Reviewed International journal

Stephen Lyman , Go Omori, Norimasa Nakamura, Toshiaki Takahashi, Harukazu Tohyama, Naoshi Fukui, Hiroshi Ikeda, Takahisa Sasho, Tomoyuki Saito , Yasuhisa Hayashi, Masataka Deie

Journal of Orthopedic Science   2023.10

The Risk Assessment and Prediction Tool (RAPT) Score Predicts Discharge Destination, Length of Stay, and Postoperative Mobility After Total Joint Arthroplasty Reviewed International journal

@LeBrun DG, Nguyen JT, Fisher C, @Tuohy S, Lyman S, Gonzalez Della Valle A, Ast MP, Carli AV.

Journal of Arthroplasty   2023.5

Machine Learning on Medicare Claims Poorly Predicts the Individual Risk of 30-Day Unplanned Readmission After Total Joint Arthroplasty, Yet Uncovers Interesting Population-level Associations With Annual Procedure Volumes Reviewed International journal

@Kunze KN, So MM, Padgett DE, Lyman S, MacLean CH, Fontana MA

Clinical Orthopedics and Related Research   2023.5

Up to 10-year surveillance comparison of survivability in single-level cervical disc replacement versus anterior cervical discectomy and fusion in New York Reviewed International journal

@Paek S, Zelenty WD, @Dodo Y, Sarin M, Shue J, Soffin EM, Cammisa FP, Girardi FP, Sama AA, Lyman S, Hughes AP

Journal of Neurosurgery   2023.4

Chronic Warfarin Anticoagulation in Hip Fracture Patients Delays Surgery and Is Associated With Increased Risk of Postoperative Complications: A Multicenter Propensity-Score-Matched Analysis Reviewed International journal

@Levack AE, Moore HG, Stephan SR, Jo S, Schroeder IG, Garlich JM, Hadad A, Little MTM, Miller AN, Lyman S, Lane JM.

Journal of Orthopaedic Trauma   37 ( 2 )   57 - 63   2023.2

Predicting Postoperative Anemia and Blood Transfusion Following Total Knee Arthroplasty Reviewed International journal

@Kolin DA, Lyman S, Della Valle AG, Ast MP, @Landy DC, Chalmers BP

Journal of Arthroplasty   2023.1

Identifying Aseptic Revision Total Knee Arthroplasty Diagnoses That Achieve Minimal Clinically Important Difference and Patient Acceptable Symptom State Reviewed International journal

@Bendich I, @Tarity TD, @Alpaugh K, Lyman S, @Diane A, Sculco PK, McLawhorn AS

Journal of Arthroplasty   2023.1

Hip arthroscopy for femoroacetabular impingement is associated with significant improvement in early patient reported outcomes: analysis of 4963 cases from the UK non-arthroplasty registry (NAHR) dataset Reviewed International journal

Holleyman R, Sohatee MA, Lyman S, Malviya A, Khanduja V; NAHR User Group

KSSTA   31 ( 1 )   58 - 69   2023.1

Hip resurfacing and posterior approach total hip arthroplasty have equivalent blood loss when tranexamic acid is used: a propensity score matched cohort analysis Reviewed International journal

@Hanreich C, Su E, Cororaton A, Lyman, S, @Jungwirth-Weinberger A, Boettner F.

Archives of orthopaedic and trauma surgery   142 ( 12 )   4055 - 4061   2022.12

Predicting Post-Discharge Opioid Consumption After Total Hip and Knee Arthroplasty in the Opioid-Naïve Patient Invited Reviewed International journal

37 ( 11 )   2022.11

Global impact of COVID-19 on surgeons and team members (GlobalCOST): a cross-sectional study Reviewed International journal

Jaffry, Z., Raj, S., Sallam, A., Lyman, S., Negida, A., Yiu, C. F. A., Sobti, A., Bua, N., Field, R. E., Abdalla, H., Hammad, R., Qazi, N., Singh, B., Brennan, P. A., Hussein, A., Narvani, A., Jones, A., Imam, M. A., & OrthoGlobe Collaborative

BMJ Open   12 ( 8 )   e059873 - e059873   2022.8

Minimal Clinically Important Difference (MCID) at One Year Postoperatively in Aseptic Revision Total Hip Arthroplasty Invited Reviewed International journal

@Bendich I, @Tarity TD, @Alpaugh K, Lyman S, Sculco PK, McLawhorn AS.

J Arthroplasty.   26   S954 - S957   2022.8

Predicting Implant Size in Total Hip Arthroplasty Reviewed International journal

Chen JB, Diane A, Lyman S, Chiu YF, Blevins JL, Westrich GH.

Arthroplasty Today   2022.4

Comparison of early outcomes of arthroscopic labral repair or debridement : a study using the UK Non-Arthroplasty Hip Registry dataset Reviewed International journal

Holleyman RJ, Lyman S, Bankes MJK, Board TN, Conroy JL, McBryde CW, Andrade AJ, Malviya A, Khanduja V.

Bone Jt Open. 2022 Apr;3(4):291-301. doi: 10.1302/2633-1462.34.BJO-2022-0003.R1.   4   291 - 301   2022.4

Delayed Surgery Does Not Reduce Transfusion Rates in Low-Energy Hip Fractures on Direct Oral Anticoagulants Invited Reviewed International journal

@Levack, Ashley E.; Moore, Harold G.; Stephan, Stephen; Jo, Sally; Schroeder, Ian; Garlich, John; Hadad, Aidan; Little, Milton T. M.; Miller, Anna N.; Lyman, Stephen; Lane, Joseph

JOURNAL OF ORTHOPAEDIC TRAUMA   36 ( 4 )   172 - 178   2022.4

History of COVID-19 Was Not Associated With Length of Stay or In-Hospital Complications After Elective Lower Extremity Joint Replacement Reviewed International journal

@Jungwirth-Weinberger A, Boettner F, Kapadia M, Diane A, Chiu YF, Lyman S, Fontana MA, Miller AO.

Arthroplasty Today   13   109 - 115   2022.2

Hip resurfacing and posterior approach total hip arthroplasty have equivalent blood loss when tranexamic acid is used: a propensity score matched cohort analysis Invited Reviewed International journal

@Hanreich, Carola; Su, Edwin; Cororaton, Agnes; Lyman, Stephen; @Jungwirth-Weinberger, Anna; Boettner, Friedrich

ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY   2022.1

Collection and Reporting of Patient-reported Outcome Measures in Arthroplasty Registries: Multinational Survey and Recommendations Invited Reviewed International journal

Bohm, Eric R.; Kirby, Sarah; Trepman, Elly; Hallstrom, Brian R.; Rolfson, Ola; Wilkinson, J. Mark; Sayers, Adrian; Overgaard, Soren; Lyman, Stephen; Franklin, Patricia D.; Dunn, Jennifer; Denissen, Geke; W-Dahl, Annette; Ingelsrud, Lina Holm; Navarro, Ronald A.

CLINICAL ORTHOPAEDICS AND RELATED RESEARCH   479 ( 10 )   2151 - 2166   2021.10

Impact of intra-operative predictive ligament balance on post-operative balance and patient outcome in TKA: a prospective multicenter study. Invited Reviewed International journal

Keggi JM, Wakelin EA, Koenig JA, Lawrence JM, Randall AL, Ponder CE, DeClaire JH, Shalhoub S, Lyman S, Plaskos C.

Archives of Orthopaedic and Trauma Surgery   2021.7

Assessment of Racial Disparities in the Risks of Septic and Aseptic Revision Total Knee Replacements Invited Reviewed International journal

Bass, Anne R.; Do, Huong T.; Mehta, Bella; Lyman, Stephen; Mirza, Serene Z.; Parks, Michael; Figgie, Mark; Mandl, Lisa A.; Goodman, Susan M.

JAMA NETWORK OPEN   4 ( 7 )   2021.7

Impact of intra-operative predictive ligament balance on post-operative balance and patient outcome in TKA: a prospective multicenter study. Reviewed International journal

Keggi JM, Wakelin EA, Koenig JA, Lawrence JM, Randall AL, Ponder CE, DeClaire JH, Shalhoub S, Lyman S, Plaskos C.

Archives of Orthopaedic and Trauma Surgery   2021.7

Accuracy of Predictive Algorithms in Total Hip and Knee Arthroplasty Acute Periprosthetic Joint Infections Treated With Debridement, Antibiotics, and Implant Retention (DAIR). Invited Reviewed International journal

Chalmers BP, Kapadia M, Chiu YF, Miller AO, Henry MW, Lyman S, Carli AV.

Journal of Arthroplasty   2021.7

Does Physical Activity Level Influence Total Hip Arthroplasty Expectations, Satisfaction, and Outcomes? Reviewed International journal

Ponzio DY, Rothermel SD, Chiu YF, Stavrakis AI, Lyman S, Windsor RE. Does

Journal of Arthroplasty   2021.4

Reliability of the classification of cartilage and labral injuries during hip arthroscopy. Reviewed International journal

Mayer SW, Fauser TR, Marx RG, Ranawat AS, Kelly BT, Lyman S, Nawabi DH.

Journal of Hip Preservation Surgery   2021.3

Improved total knee arthroplasty pain outcome when joint gap targets are achieved throughout flexion. Invited Reviewed International journal

Wakelin EA, Shalhoub S, Lawrence JM, Keggi JM, DeClaire JH, Randall AL, Ponder CE, Koenig JA, Lyman S, Plaskos C.

Knee Surgery, Sports Traumatology, Arthroscopy (KSSTA) Official Journal of the European Society of Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA)   2021.2

High Number of Daily Steps Recorded by Runners Recovering from Bone Stress Injuries. Reviewed International journal

Toresdahl BG, Nguyen J, Goolsby MA, Drakos MC, Lyman S.

HSS Journal   2020.12

Monitoring Patient Recovery After THA or TKA Using Mobile Technology Reviewed International journal

Stephen Lyman, Chisa Hidaka, Kara Fields, Wasif Islam, David Mayman

HSS Journal   2020.12

Venous Thromboembolism in Hip Fracture Patients: A Subanalysis of the FAITH and HEALTH Trials. Reviewed International journal

MacDonald DRW, Neilly D, Schneider PS, Bzovsky S, Sprague S, Axelrod D, Poolman RW, Frihagen F, Bhandari M, Swiontkowski M, Schemitsch EH, Stevenson IM; FAITH Investigators; HEALTH Investigators.

Journal of Orthopedic Trauma   2020.11

The Short Form KOOS, JR Is Valid for Revision Knee Arthroplasty. Reviewed International journal

Buller LT, McLawhorn AS, Lee YY, Cross M, Haas S, Lyman S.

Journal of Arthroplasty   2020.9

Validation of the Hip Disability and Osteoarthritis Outcome Score and Knee Injury and Osteoarthritis Outcome Score Pain and Function Subscales for Use in Total Hip Replacement and Total Knee Replacement Clinical Trials Reviewed

Journal of Arthroplasty   35 ( 5 )   1200 - 1207.e4   2020.5

Comparative Clinical Outcomes After Intra-articular Injection With Adipose-Derived Cultured Stem Cells or Noncultured Stromal Vascular Fraction for the Treatment of Knee Osteoarthritis Response Reviewed

Norimasa Nakamura, Naomasa Yokota, Mari Hattori, Tadahiko Ohtsuru, Masaki Otsuji, Stephen Lyman, Kazunori Shimomura

American Journal of Sports Medicine   48 ( 2 )   NP19 - NP20   2020.2

The Short Form KOOS, JR Is Valid for Revision Knee Arthroplasty Reviewed

Leonard T. Buller, Alexander S. McLawhorn, Yuo Yu Lee, Michael Cross, Steven Haas, Stephen Lyman

Journal of Arthroplasty   2020.1

Reporting Clinical Significance in Hip Arthroscopy Where Are We Now? Reviewed

Breanna A. Polascik, Jeffrey Peck, Nicholas Cepeda, Stephen Lyman, Daphne Ling

HSS Journal   2020.1

Novel patient-specific visual analogue survey (PVS) is validated in patients treated with collagenase injection for Dupuytren's disease Reviewed

Stephen L. Lyman, Jayme Burket Kotsov, Chisa Hidaka, Quynh Tran, Naomi Roselaar, Norimasa Nakamura, Robert Hotchkiss

Journal of ISAKOS   5 ( 1 )   3 - 9   2020.1

Intraoperative physiological lateral laxity in extension and flexion for varus knees did not affect short-term clinical outcomes and patient satisfaction Reviewed

Yoshihisa Tanaka, Shinichiro Nakamura, Shinichi Kuriyama, Kohei Nishitani, Hiromu Ito, Stephen Lyman, Shuichi Matsuda

Knee Surgery, Sports Traumatology, Arthroscopy   2020.1

Assessment of a Satisfaction Measure for Use After Primary Total Joint Arthroplasty Reviewed

Susan M. Goodman, Bella Y. Mehta, Cynthia A. Kahlenberg, Ethan C. Krell, Joseph Nguyen, Jackie Finik, Mark P. Figgie, Michael L. Parks, Douglas E. Padgett, Vinicius C. Antao, Adolph J. Yates, Bryan D. Springer, Steven L. Lyman, Jasvinder A. Singh

Journal of Arthroplasty   2020.1

A greater reduction in the distal femoral anterior condyle improves flexion after total knee arthroplasty in patients with osteoarthritis Reviewed

Kohei Nishitani, Ryosuke Hatada, Shinichi Kuriyama, Stephen L. Lyman, Shinichiro Nakamura, Hiromu Ito, Shuicih Matsuda

Knee   26 ( 6 )   1364 - 1371   2019.12

Racial Disparities in Total Knee Replacement Failure As Related to Poverty Reviewed

Anne R. Bass, Bella Mehta, Jackie Szymonifka, Jackie Finik, Stephen Lyman, Emily Ying Lai, Michael Parks, Mark Figgie, Lisa A. Mandl, Susan M. Goodman

Arthritis Care and Research   71 ( 11 )   1488 - 1494   2019.11

Outcomes of lumbar decompression surgery in patients with diffuse idiopathic skeletal hyperostosis (DISH) Reviewed

Bungo Otsuki, Shunsuke Fujibayashi, Shimei Tanida, Takayoshi Shimizu, Stephen Lyman, Shuichi Matsuda

Journal of Orthopaedic Science   24 ( 6 )   957 - 962   2019.11

Comparison of Expectations and Outcomes in Rheumatoid Arthritis Versus Osteoarthritis Patients Undergoing Total Knee Arthroplasty Reviewed

Jason L. Blevins, Yu Fen Chiu, Stephen Lyman, Susan M. Goodman, Lisa A. Mandl, Peter K. Sculco, Mark P. Figgie, Alexander S. McLawhorn

Journal of Arthroplasty   34 ( 9 )   1946 - 1952.e2   2019.9

Comparative Clinical Outcomes After Intra-articular Injection With Adipose-Derived Cultured Stem Cells or Noncultured Stromal Vascular Fraction for the Treatment of Knee Osteoarthritis Reviewed

Naomasa Yokota, Mari Hattori, Tadahiko Ohtsuru, Masaki Otsuji, Stephen Lyman, Kazunori Shimomura, Norimasa Nakamura

American Journal of Sports Medicine   47 ( 11 )   2577 - 2583   2019.9

Patient Factors Affecting Emergency Department Utilization and Hospital Readmission Rates after Primary Anterior Cervical Discectomy and Fusion A Review of 41,813 cases Reviewed

Evan D. Sheha, Stephan N. Salzmann, Sariah Khormaee, Jingyan Yang, Federico P. Girardi, Frank P. Cammisa, Andrew A. Sama, Stephen Lyman, Alexander P. Hughes

Spine   44 ( 15 )   1078 - 1086   2019.8

Dynamic sensor-balanced knee arthroplasty can the sensor “train” the surgeon? Reviewed

5 ( 2 )   202 - 210   2019.6

Orthopaedic registries with patient-reported outcome measures Reviewed

EFORT Open Reviews   4 ( 6 )   357 - 367   2019.6

Can machine learning algorithms predict which patients will achieve minimally clinically important differences from total joint arthroplasty? Reviewed

Mark Alan Fontana, Stephen Lyman, Gourab K. Sarker, Douglas E. Padgett, Catherine H. MacLean

Clinical orthopaedics and related research   477 ( 6 )   1267 - 1279   2019.6

Development and validation of a culturally relevant Japanese KOOS Reviewed

Leonard Lyman Stephen, Go Omori, Norimasa Nakamura, Toshiaki Takahashi, Harukazu Tohyama, Naoshi Fukui, Hiroshi Ikeda, Takahisa Sasho, Tomoyuki Saito, Yasuhisa Hayashi, Matsutaka Deie

Journal of Orthopaedic Science   24 ( 3 )   514 - 520   2019.5

Age-Related Functional Decline Following Total Knee Arthroplasty Risk Adjustment is Mandatory Reviewed

Michael Pitta, Amir Khoshbin, Anum Lalani, Lily Y. Lee, Pauline Woo, Geoffrey H. Westrich, Leonard Lyman Stephen

Journal of Arthroplasty   34 ( 2 )   228 - 234   2019.2

PROMIS physical function underperforms psychometrically relative to American Shoulder and Elbow Surgeons score in patients undergoing anatomic total shoulder arthroplasty Reviewed

Michael C. Fu, Brenda Chang, Alexandra C. Wong, Benedict U. Nwachukwu, Russell F. Warren, David M. Dines, Joshua S. Dines, Frank A. Cordasco, Leonard Lyman Stephen, Lawrence V. Gulotta

Journal of Shoulder and Elbow Surgery   2019.1

Incidence and Risk Factors for Peripheral Nerve Injury After 383,000 Total Knee Arthroplasties Using a New York State Database (SPARCS) Reviewed

Alexander B. Christ, Yu fen Chiu, Amethia Joseph, Geoffrey H. Westrich, Leonard Lyman Stephen

Journal of Arthroplasty   2019.1

Age-Related Decline in Patient-Reported Outcomes 2 and 5 Years Following Total Hip Arthroplasty Reviewed

Anum Lalani, Yuo Yu Lee, Michael Pitta, Geoffrey H. Westrich, Leonard Lyman Stephen

Journal of Arthroplasty   2019.1

Risk Factors for Nerve Injury After Total Hip Arthroplasty A Case-Control Study Reviewed

Teena Shetty, Joseph T. Nguyen, Anita Wu, Mayu Sasaki, Eric Bogner, Alissa Burge, Taylor Cogsil, Esther U. Kim, Kelianne Cummings, Edwin P. Su, Leonard Lyman Stephen

Journal of Arthroplasty   34 ( 1 )   151 - 156   2019.1

Modern trunnion designs do not affect clinically significant patient-reported outcomes Reviewed

Ugonna N. Ihekweazu, Stephen Lyman, Yu Fen Chiu, Idelle Vaynberg, Geoffrey Westrich

HIP International   2019.1

Comparison of patient-reported outcomes based on implant brand in total knee arthroplasty A prospective cohort study Reviewed

C. A. Kahlenberg, S. Lyman, Y. F. Chiu, D. E. Padgett

Bone and Joint Journal   101 B   48 - 54   2019.1

Clinical and design factors influence the survivorship of custom flange acetabular components Reviewed

C. W. Jones, D. S. Choi, P. Sun, Y. F. Chiu, J. D. Lipman, S. Lyman, M. P.G. Bostrom, P. K. Sculco

Bone and Joint Journal   101-B   68 - 76   2019.1

Total Hip Arthroplasty Performed for Coxarthrosis Preserves Long-Term Physical Function A 40-Year Experience Reviewed

Philip D. Wilson, Leslee Wong, Yuo Yu Lee, Leonard Lyman Stephen, Charles N. Cornell

HSS Journal   2019.1

Risk Factors for Peripheral Nerve Injury After 207,000 Total Hip Arthroplasties Using a New York State Database (Statewide Planning and Research Cooperative System) Reviewed

Alexander B. Christ, Yu fen Chiu, Amethia Joseph, Geoffrey H. Westrich, Leonard Lyman Stephen

Journal of Arthroplasty   2019.1

Race and Insurance Status Are Associated With Surgical Management of Isolated Meniscus Tears Reviewed

William W. Schairer, Benedict U. Nwachukwu, Leonard Lyman Stephen, Answorth A. Allen

Arthroscopy - Journal of Arthroscopic and Related Surgery   34 ( 9 )   2677 - 2682   2018.9

Risk of Ischemic Stroke After Perioperative Atrial Fibrillation in Total Knee and Hip Arthroplasty Patients Reviewed

Sariah Khormaee, Huong T. Do, Yevgeniy Mayr, Gino Gialdini, Hooman Kamel, Leonard Lyman Stephen, Michael B. Cross

Journal of Arthroplasty   33 ( 9 )   3016 - 3019   2018.9

Intraoperative medial joint laxity in flexion decreases patient satisfaction after total knee arthroplasty Reviewed

Masayuki Azukizawa, Shinichi Kuriyama, Shinichiro Nakamura, Kohei Nishitani, Leonard Lyman Stephen, Yugo Morita, Moritoshi Furu, Hiromu Ito, Shuichi Matsuda

Archives of Orthopaedic and Trauma Surgery   138 ( 8 )   1143 - 1150   2018.8

Postoperative emergency department utilization and hospital readmission after cervical spine arthrodesis Reviewed

Peter B. Derman, Lukas P. Lampe, Ting Jung Pan, Stephan N. Salzmann, Janina Kueper, Federico P. Girardi, Leonard Lyman Stephen, Alexander P. Hughes

Spine   43 ( 15 )   1031 - 1037   2018.8

Online Patient Ratings Are Not Correlated with Total Knee Replacement Surgeon–Specific Outcomes Reviewed

14 ( 2 )   177 - 180   2018.7

Discharge to Inpatient Rehab Does Not Result in Improved Functional Outcomes Following Primary Total Knee Arthroplasty Reviewed

Douglas E. Padgett, Alexander B. Christ, Amethia D. Joseph, You Yu Lee, Steven B. Haas, Leonard Lyman Stephen

Journal of Arthroplasty   33 ( 6 )   1663 - 1667   2018.6

The HCUP SID Imputation Project Improving Statistical Inferences for Health Disparities Research by Imputing Missing Race Data Reviewed

Yan Ma, Wei Zhang, Leonard Lyman Stephen, Yihe Huang

Health Services Research   53 ( 3 )   1870 - 1889   2018.6

Risk factors for acute nerve injury after total knee arthroplasty Reviewed

Teena Shetty, Joseph T. Nguyen, Mayu Sasaki, Anita Wu, Eric Bogner, Alissa Burge, Taylor Cogsil, Aashka Dalal, Kristin Halvorsen, Kelianne Cummings, Edwin P. Su, Leonard Lyman Stephen

Muscle and Nerve   57 ( 6 )   946 - 950   2018.6

Cervical Spinal Fusion 16-Year Trends in Epidemiology, Indications, and In-Hospital Outcomes by Surgical Approach Reviewed

Stephan N. Salzmann, Peter B. Derman, Lukas P. Lampe, Janina Kueper, Ting Jung Pan, Jingyan Yang, Jennifer Shue, Federico P. Girardi, Leonard Lyman Stephen, Alexander P. Hughes

World Neurosurgery   113   e280 - e295   2018.5

Defining the Learning Curve for Hip Arthroscopy A Threshold Analysis of the Volume-Outcomes Relationship Reviewed

Nabil Mehta, Peter Chamberlin, Robert G. Marx, Chisa Hidaka, Yile Ge, Danyal H. Nawabi, Leonard Lyman Stephen

American Journal of Sports Medicine   46 ( 6 )   1284 - 1293   2018.5

The effect of negative randomized trials and surgeon volume on the rates of arthroscopy for patients with knee OA Reviewed

Hassan M.K. Ghomrawi, Robert G. Marx, Ting Jung Pan, Matthew Conti, Leonard Lyman Stephen

Contemporary Clinical Trials Communications   9   40 - 44   2018.3

Factors influencing spinal sagittal balance, bone mineral density, and Oswestry Disability Index outcome measures in patients with rheumatoid arthritis Reviewed

Kazutaka Masamoto, Bungo Otsuki, Shunsuke Fujibayashi, Koichiro Shima, Hiromu Ito, Moritoshi Furu, Motomu Hashimoto, Masao Tanaka, Leonard Lyman Stephen, Hiroyuki Yoshitomi, Shimei Tanida, Tsuneyo Mimori, Shuichi Matsuda

European Spine Journal   27 ( 2 )   406 - 415   2018.2

An analysis of the influence of physical activity level on total knee arthroplasty expectations, satisfaction, and outcomes Increased revision in active patients at five to ten years Reviewed

Danielle Y. Ponzio, Yu Fen Chiu, Anthony Salvatore, Yuo Yu Lee, Leonard Lyman Stephen, Russell E. Windsor

Journal of Bone and Joint Surgery - American Volume   100 ( 18 )   1539 - 1548   2018.1

What are the minimal and substantial improvements in the HOOS and KOOS and JR versions after total joint replacement? Reviewed

Leonard Lyman Stephen, Yuo Yu Lee, Alexander S. McLawhorn, Wasif Islam, Catherine H. MacLean

Clinical orthopaedics and related research   476 ( 12 )   2432 - 2441   2018.1

Risk-based hospital and surgeon-volume categories for total hip arthroplasty Reviewed

Jayme C.B. Koltsov, Robert G. Marx, Emily Bachner, Alexander S. McLawhorn, Leonard Lyman Stephen

Journal of Bone and Joint Surgery - American Volume   100 ( 14 )   1203 - 1208   2018.1

Incidence of Nerve Repair Following Endoscopic Carpal Tunnel Release Is Higher Compared to Open Release in New York State Reviewed

Samir K. Trehan, Leonard Lyman Stephen, Yile Ge, Huong T. Do, Aaron Daluiski

HSS Journal   2018.1

Validation of electronic administration of knee surveys among ACL-injured patients Reviewed

Joseph Nguyen, Robert Marx, Chisa Hidaka, Sean Wilson, Leonard Lyman Stephen

Knee Surgery, Sports Traumatology, Arthroscopy   25 ( 10 )   3116 - 3122   2017.10

Using Mobile Tracking Technology to Visualize the Trajectory of Recovery After Hip Arthroscopy a Case Report Reviewed

Nabil Mehta, Claire Steiner, Kara G. Fields, Danyal H. Nawabi, Leonard Lyman Stephen

HSS Journal   13 ( 2 )   194 - 200   2017.7

Characteristics of orthopedic publications in high-impact general medical journals Reviewed

Benedict U. Nwachukwu, Cynthia A. Kahlenberg, Jason D. Lehman, Leonard Lyman Stephen, Robert G. Marx

Orthopedics   40 ( 3 )   e405 - e412   2017.5

Arthroplasty treatment of proximal humerus fractures 14-year trends in the United States Reviewed

William W. Schairer, Benedict U. Nwachukwu, Leonard Lyman Stephen, Lawrence V. Gulotta

Physician and Sportsmedicine   45 ( 2 )   92 - 96   2017.4

A Crosswalk Between UCLA and Lower Extremity Activity Scales Reviewed

Hassan M.K. Ghomrawi, Yuo yu Lee, Christina Herrero, Amethia Joseph, Douglas Padgett, Geoffrey Westrich, Michael Parks, Leonard Lyman Stephen

Clinical orthopaedics and related research   475 ( 2 )   542 - 548   2017.2

Comparison of Revision Rates of Non-modular Constrained Versus Posterior Stabilized Total Knee Arthroplasty a Propensity Score Matched Cohort Study Reviewed

Mohamed E. Moussa, Yuo yu Lee, Geoffrey H. Westrich, Nabil Mehta, Leonard Lyman Stephen, Robert G. Marx

HSS Journal   13 ( 1 )   61 - 65   2017.2

All-cause versus complication-specific readmission following total knee arthroplasty Reviewed

Michele D'Apuzzo, Geoffrey Westrich, Chisa Hidaka, Ting Jung Pan, Leonard Lyman Stephen

Journal of Bone and Joint Surgery - American Volume   99 ( 13 )   1093 - 1103   2017.1

Bone Morphogenetic Proteins in Pediatric Spinal Arthrodesis A Statewide Analysis of Trends and Outcome of Utilization Reviewed

Benedict U. Nwachukwu, William W. Schairer, Ting Pan, Roger F. Widmann, John S. Blanco, Daniel W. Green, Leonard Lyman Stephen, Emily R. Dodwell

Journal of Pediatric Orthopaedics   37 ( 6 )   e369 - e374   2017.1

Atlantoaxial fusion Sixteen years of epidemiology, indications, and complications in New York State Reviewed

Peter B. Derman, Lukas P. Lampe, Leonard Lyman Stephen, Janina Kueper, Ting Jung Pan, Federico P. Girardi, Todd J. Albert, Alexander P. Hughes

Spine   41 ( 20 )   1586 - 1592   2016.10

Preoperative Hip Injections Increase the Rate of Periprosthetic Infection After Total Hip Arthroplasty Reviewed

William W. Schairer, Benedict U. Nwachukwu, David J. Mayman, Leonard Lyman Stephen, Seth A. Jerabek

Journal of Arthroplasty   31 ( 9 )   166 - 169.e1   2016.9

Validation of the HOOS, JR A Short-form Hip Replacement Survey Reviewed

Leonard Lyman Stephen, Yuo Yu Lee, Patricia D. Franklin, Wenjun Li, David J. Mayman, Douglas E. Padgett

Clinical Orthopaedics and Related Research   474 ( 6 )   1472 - 1482   2016.6

Validation of the KOOS, JR A Short-form Knee Arthroplasty Outcomes Survey Reviewed

Leonard Lyman Stephen, Yuo Yu Lee, Patricia D. Franklin, Wenjun Li, Michael B. Cross, Douglas E. Padgett

Clinical Orthopaedics and Related Research   474 ( 6 )   1461 - 1471   2016.6

Epidemiology of total ankle arthroplasty Trends in New York State Reviewed

Christine M. Seaworth, Huong T. Do, Ettore Vulcano, Sriniwasan B. Mani, Leonard Lyman Stephen, Scott J. Ellis

Orthopedics   39 ( 3 )   170 - 176   2016.5

Racial and socioeconomic disparities in hip fracture care Reviewed

Christopher J. Dy, Joseph M. Lane, Ting Jung Pan, Michael L. Parks, Leonard Lyman Stephen

Journal of Bone and Joint Surgery - American Volume   98 ( 10 )   858 - 865   2016.5

Use of Hip Arthroscopy and Risk of Conversion to Total Hip Arthroplasty A Population-Based Analysis Presented at the American Academy of Orthopaedic Surgeons Annual Meeting, Las Vegas, NV, March 2015. Reviewed

William W. Schairer, Benedict U. Nwachukwu, Frank McCormick, Leonard Lyman Stephen, David Mayman

Arthroscopy - Journal of Arthroscopic and Related Surgery   32 ( 4 )   587 - 593   2016.4

The Need for a Step-up in Postoperative Medical Care is Predictable in Orthopedic Patients Undergoing Elective Surgery Reviewed

Michael K. Urban, Michele Mangini-Vendel, Leonard Lyman Stephen, Ting Jung Pan, Steven K. Magid

HSS Journal   12 ( 1 )   59 - 65   2016.2

Demographic, clinical, and operative factors affecting long-term revision rates after cervical spine arthrodesis Reviewed

Peter B. Derman, Lukas P. Lampe, Alexander P. Hughes, Ting Jung Pan, Janina Kueper, Federico P. Girardi, Todd J. Albert, Leonard Lyman Stephen

Journal of Bone and Joint Surgery - American Volume   98 ( 18 )   1533 - 1540   2016.1

Socioeconomic factors are associated with trends in treatment of pediatric femoral shaft fractures, and subsequent implant removal in New York State Reviewed

Emily Dodwell, James Wright, Roger Widmann, Flo Edobor-Osula, Ting Jung Pan, Leonard Lyman Stephen

Journal of Pediatric Orthopaedics   36 ( 5 )   459 - 464   2016.1

Racial and ethnic disparities in utilization rate, hospital volume, and perioperative outcomes after total knee arthroplasty Reviewed

Wei Zhang, Leonard Lyman Stephen, Carla Boutin-Foster, Michael L. Parks, Ting Jung Pan, Alexis Lan, Yan Ma

Journal of Bone and Joint Surgery - American Volume   98 ( 15 )   1243 - 1252   2016.1

Meaningful thresholds for the volume-outcome relationship in total knee arthroplasty Reviewed

Sean Wilson, Robert G. Marx, Ting Jung Pan, Leonard Lyman Stephen

Journal of Bone and Joint Surgery - American Volume   98 ( 20 )   1683 - 1690   2016.1

Prolonged Length of Stay Is Not an Acceptable Alternative to Coded Complications in Assessing Hospital Quality in Elective Joint Arthroplasty Reviewed

Leonard Lyman Stephen, Kara G. Fields, Allina A. Nocon, Benjamin F. Ricciardi, Friedrich Boettner

Journal of Arthroplasty   30 ( 11 )   1863 - 1867   2015.11

Reverse shoulder arthroplasty versus hemiarthroplasty for treatment of proximal humerus fractures Reviewed

William W. Schairer, Benedict U. Nwachukwu, Leonard Lyman Stephen, Edward V. Craig, Lawrence V. Gulotta

Journal of Shoulder and Elbow Surgery   24 ( 10 )   1560 - 1566   2015.10

Predictors of Satisfaction Following Total Knee Arthroplasty Reviewed

Joseph D. Maratt, Yuo yu Lee, Leonard Lyman Stephen, Geoffrey H. Westrich

Journal of Arthroplasty   30 ( 7 )   1142 - 1145   2015.7

Two Year Clinical Outcomes of Total Hip Arthroplasty Are Not Dependent on Femoral Head Composition Reviewed

Michael P. Ast, Leonard Lyman Stephen, Alexandra H. Gorab, Natalie Parkes, John Boles, Yuo yu Lee, Geoffrey H. Westrich

HSS Journal   11 ( 2 )   130 - 135   2015.7

Risk for Complication after Total Joint Arthroplasty at a Center of Excellence The Impact of Patient Travel Distance Reviewed

Benedict U. Nwachukwu, Christopher J. Dy, Jayme C. Burket, Douglas E. Padgett, Leonard Lyman Stephen

Journal of Arthroplasty   30 ( 6 )   1058 - 1061   2015.6

Evaluation of the foot and ankle outcome score in patients with osteoarthritis of the ankle Reviewed

S. B. Mani, H. Do, E. Vulcano, M. V. Hogan, Leonard Lyman Stephen, J. T. Deland, S. J. Ellis

Bone and Joint Journal   97-B ( 5 )   662 - 667   2015.5

Cup position alone does not predict risk of dislocation after hip arthroplasty Reviewed

Christina I. Esposito, Brian P. Gladnick, Yuo yu Lee, Leonard Lyman Stephen, Timothy M. Wright, David J. Mayman, Douglas E. Padgett

Journal of Arthroplasty   30 ( 1 )   109 - 113   2015.1

The potential influence of regionalization strategies on delivery of care for elective total joint arthroplasty Reviewed

Christopher J. Dy, Robert G. Marx, Hassan M.K. Ghomrawi, Ting Jung Pan, Geoffrey H. Westrich, Leonard Lyman Stephen

Journal of Arthroplasty   30 ( 1 )   1 - 6   2015.1

National utilization of reverse total shoulder arthroplasty in the United States Reviewed

William W. Schairer, Benedict U. Nwachukwu, Leonard Lyman Stephen, Edward V. Craig, Lawrence V. Gulotta

Journal of Shoulder and Elbow Surgery   24 ( 1 )   91 - 97   2015.1

Do Patient Race and Sex Change Surgeon Recommendations for TKA? Reviewed

Christopher J. Dy, Leonard Lyman Stephen, Carla Boutin-Foster, Karla Felix, Yoon Kang, Michael L. Parks

Clinical orthopaedics and related research   473 ( 2 )   410 - 417   2015.1

Imatinib mesylate (Gleevec™) in the treatment of diffuse cutaneous systemic sclerosis results of a 24-month open label, extension phase, single-centre trial Reviewed

32 ( 6 )   2014.11

Weight changes after total hip or knee arthroplasty Prevalence, predictors, and effects on outcomes Reviewed

Michael P. Ast, Matthew P. Abdel, Yuo Yu Lee, Leonard Lyman Stephen, Allison V. Ruel, Geoffrey H. Westrich

Journal of Bone and Joint Surgery - American Volume   97 ( 11 )   911 - 919   2014.9

20 years of pediatric anterior cruciate ligament reconstruction in New York state Reviewed

Emily R. Dodwell, Lauren E. Lamont, Daniel W. Green, Ting Jung Pan, Robert G. Marx, Leonard Lyman Stephen

American Journal of Sports Medicine   42 ( 3 )   675 - 680   2014.3

Patellofemoral crepitation and clunk following modern, fixed-bearing total knee arthroplasty Reviewed

Journal of Arthroplasty   29 ( 3 )   535 - 540   2014.3

A surge in anti-dsDNA titer predicts a severe lupus flare within six months Reviewed

N. Pan, I. Amigues, Leonard Lyman Stephen, R. Duculan, F. Aziz, M. K. Crow, K. A. Kirou

Lupus   23 ( 3 )   293 - 298   2014.3

MRI predicts ALVAL and tissue damage in metal-on-metal hip arthroplasty Reviewed

Danyal H. Nawabi, Stephanie Gold, Leonard Lyman Stephen, Kara Fields, Douglas E. Padgett, Hollis G. Potter

Clinical Orthopaedics and Related Research   472 ( 2 )   471 - 481   2014.2

All-cause in-hospital complications and urinary tract infections increased in obese patients undergoing total knee arthroplasty Reviewed

Journal of Arthroplasty   29 ( 7 )   1430 - 1434   2014.1

US trends in rates of arthroplasty for inflammatory arthritis including rheumatoid arthritis, juvenile idiopathic arthritis, and spondyloarthritis Reviewed

Christina Mertelsmann-Voss, Leonard Lyman Stephen, Ting Jung Pan, Susan M. Goodman, Mark P. Figgie, Lisa A. Mandl

Arthritis and Rheumatology   66 ( 6 )   1432 - 1439   2014.1

The effect of lateral opening wedge distal femoral osteotomy on medial knee opening Clinical and biomechanical factors Reviewed

Iftach Hetsroni, Leonard Lyman Stephen, Andrew D. Pearle, Robert G. Marx

Knee Surgery, Sports Traumatology, Arthroscopy   22 ( 7 )   1659 - 1665   2014.1

Socioeconomic factors are associated with frequency of repeat emergency department visits for pediatric closed fractures Reviewed

Christopher J. Dy, Leonard Lyman Stephen, Huong T. Do, Peter D. Fabricant, Robert G. Marx, Daniel W. Green

Journal of Pediatric Orthopaedics   34 ( 5 )   548 - 551   2014.1

Risk factors for revision within 10 years of total knee arthroplasty Reviewed

Christopher J. Dy, Robert G. Marx, Kevin J. Bozic, Ting Jung Pan, Douglas E. Padgett, Leonard Lyman Stephen

Clinical Orthopaedics and Related Research   472 ( 4 )   1198 - 1207   2014.1

Risk factors for early revision after total hip arthroplasty Reviewed

Christopher J. Dy, Kevin J. Bozic, Ting Jung Pan, Timothy M. Wright, Douglas E. Padgett, Leonard Lyman Stephen

Arthritis Care and Research   66 ( 6 )   907 - 915   2014.1

Range of motion and function are not affected by increased post constraint in patients undergoing posterior stabilized total knee arthroplasty Reviewed

Knee   21 ( 1 )   194 - 198   2014.1

Is changing hospitals for revision total joint arthroplasty associated with more complications? Reviewed

Christopher J. Dy, Kevin J. Bozic, Douglas E. Padgett, Ting Jung Pan, Robert G. Marx, Leonard Lyman Stephen

Clinical orthopaedics and related research   472 ( 7 )   2006 - 2015   2014.1

Intraarticular fibrinogen does not reduce blood loss in TKA A randomized clinical trial knee Reviewed

Thomas Jan Heyse, Steven B. Haas, Denise Drinkwater, Leonard Lyman Stephen, Han Jo Kim, Barbara A. Kahn, Mark P. Figgie

Clinical Orthopaedics and Related Research   472 ( 1 )   272 - 276   2014.1

Epidemiology of multiligament knee reconstruction Reviewed

Sean M. Wilson, Nabil Mehta, Huong T. Do, Hassan Ghomrawi, Leonard Lyman Stephen, Robert G. Marx

Clinical Orthopaedics and Related Research   472 ( 9 )   2603 - 2608   2014.1

Clinical outcomes of patients with non-fatal VTE after total knee arthroplasty Reviewed

Michael P. Ast, Alexandra H. Gorab, Trevor R. Banka, Lily Lee, Leonard Lyman Stephen, Geoffrey H. Westrich

Journal of Arthroplasty   29 ( 1 )   37 - 39   2014.1

Clinical Outcomes in Patients with Pulmonary Hypertension Undergoing Total Hip Arthroplasty Reviewed

David Kim, Kethy Jules-Elysee, Lauren Turteltaub, Michael K. Urban, Jacques T. YaDeau, Shane Reid, Leonard Lyman Stephen, Yan Ma

HSS Journal   10 ( 2 )   131 - 135   2014.1

Arthroscopic partial meniscectomy provides no benefit over sham surgery in the setting of isolated degenerative medial meniscal tears without osteoarthritis Reviewed

Leonard Lyman Stephen, Christopher Dy

Evidence-Based Medicine   19 ( 4 )   2014.1

Arthroplasty rates are increased among us patients with systemic lupus erythematosus 1991-2005 Reviewed

Christina Mertelsmann-Voss, Leonard Lyman Stephen, Ting Jung Pan, Susan Goodman, Mark P. Figgie, Lisa A. Mandl

Journal of Rheumatology   41 ( 5 )   867 - 874   2014.1

Risk factors for meniscectomy after meniscal repair Reviewed

Leonard Lyman Stephen, Chisa Hidaka, Ana S. Valdez, Iftach Hetsroni, Ting Jung Pan, Huong Do, Warren R. Dunn, Robert G. Marx

American Journal of Sports Medicine   41 ( 12 )   2772 - 2778   2013.12

Syndesmosis and lateral ankle sprains in the National Football League Reviewed

Daryl C. Osbahr, Mark C. Drakos, Padhraig F. O'Loughlin, Leonard Lyman Stephen, Ronnie P. Barnes, John G. Kennedy, Russell F. Warren

Orthopedics   36 ( 11 )   2013.11

The natural history of a newly developed flexion contracture following primary total knee arthroplasty Reviewed

International Orthopaedics   37 ( 10 )   1917 - 1923   2013.10

The epidemiology of reoperation after flexor pulley reconstruction Reviewed

Christopher J. Dy, Leonard Lyman Stephen, Joseph J. Schreiber, Huong T. Do, Aaron Daluiski

Journal of Hand Surgery   38 ( 9 )   1705 - 1711   2013.9

Obese patients undergoing total knee arthroplasty have distinct preoperative characteristics An institutional study of 4718 patients Reviewed

Journal of Arthroplasty   28 ( 7 )   1125 - 1129   2013.8

Validation of the foot and ankle outcome score in adult acquired flatfoot deformity Reviewed

Foot and Ankle International   34 ( 8 )   1140 - 1146   2013.8

The shorthand bone age assessment A simpler alternative to current methods Reviewed

Benton E. Heyworth, Daniel A. Osei, Peter D. Fabricant, Robert Schneider, Shevaun M. Doyle, Daniel W. Green, Roger F. Widmann, Leonard Lyman Stephen, Stephen W. Burke, David M. Scher

Journal of Pediatric Orthopaedics   33 ( 5 )   569 - 574   2013.7

Cervical spine disease is a risk factor for persistent phrenic nerve paresis following interscalene nerve block Reviewed

Swetha R. Pakala, James D. Beckman, Leonard Lyman Stephen, Victor M. Zayas

Regional Anesthesia and Pain Medicine   38 ( 3 )   239 - 242   2013.5

Low prevalence of coeliac disease in patients with systemic sclerosis A cross-sectional study of a registry cohort Reviewed

Lindsy J. Forbess, Jessica K. Gordon, Kamini Doobay, Brian P. Bosworth, Leonard Lyman Stephen, Morgana L. Davids, Robert F. Spiera

Rheumatology (United Kingdom)   52 ( 5 )   939 - 943   2013.5

The Increased Utilization of Operating Room Time in Patients with Increased BMI during Primary Total Hip Arthroplasty Reviewed

John L. Wang, Naomi E. Gadinsky, Alyssa M. Yeager, Leonard Lyman Stephen, Geoffrey H. Westrich

Journal of Arthroplasty   28 ( 4 )   680 - 683   2013.4

Falls among patients who had elective orthopaedic surgery A decade of experience from a musculoskeletal specialty hospital Reviewed

Lisa A. Mandl, Leonard Lyman Stephen, Patricia Quinlan, Tina Bailey, Jacklyn Katz, Steven K. Magid

Journal of Orthopaedic and Sports Physical Therapy   43 ( 2 )   91 - 96   2013.2

Incidence of postoperative elbow contracture release in New York State Reviewed

Mark A. Schrumpf, Leonard Lyman Stephen, Huong Do, Joseph J. Schreiber, David M. Gay, Robert Marx, Aaron Daluiski

Journal of Hand Surgery   38 ( 9 )   2013.1

The Relationship Among Health Literacy, Health Knowledge, and Adherence to Treatment in Patients with Rheumatoid Arthritis Reviewed

Patricia Quinlan, Kwanza O. Price, Steven K. Magid, Leonard Lyman Stephen, Lisa A. Mandl, Patricia W. Stone

HSS Journal   9 ( 1 )   42 - 49   2013.1

Sex differences of hip morphology in young adults with hip pain and labral tears Reviewed

Iftach Hetsroni, Katrina Dela Torre, Gavin Duke, Leonard Lyman Stephen, Bryan T. Kelly

Arthroscopy - Journal of Arthroscopic and Related Surgery   29 ( 1 )   54 - 63   2013.1

Recutting the distal femur to increase maximal knee extension during TKA causes coronal plane laxity in mid-flexion Reviewed

Michael B. Cross, Denis Nam, Christopher Plaskos, Seth L. Sherman, Leonard Lyman Stephen, Andrew D. Pearle, David J. Mayman

Knee   19 ( 6 )   875 - 879   2012.12

Validation of foot and ankle outcome score for hallux valgus Reviewed

Lan Chen, Leonard Lyman Stephen, Huong Do, Jon Karlsson, Stephanie P. Adam, Elizabeth Young, Jonathan T. Deland, Scott J. Ellis

Foot and Ankle International   33 ( 12 )   1145 - 1155   2012.12

MRI evaluation of rotational alignment and synovitis in patients with pain after total knee replacement Reviewed

A. M. Murakami, T. W. Hash, M. S. Hepinstall, Leonard Lyman Stephen, B. J. Nestor, H. G. Potter

Journal of Bone and Joint Surgery - Series B   94 B ( 9 )   1209 - 1215   2012.9

The Validity of Self-Report as a Technique for Measuring Short-Term Complications After Total Hip Arthroplasty in a Joint Replacement Registry Reviewed

Jordan N. Greenbaum, Lindsey J. Bornstein, Leonard Lyman Stephen, Michael M. Alexiades, Geoffrey H. Westrich

Journal of Arthroplasty   27 ( 7 )   1310 - 1315   2012.8

The efficacy of a thrombin-based hemostatic agent in unilateral total knee arthroplasty A randomized controlled trial Reviewed

Han Jo Kim, M. Robson Fraser, Barbara Kahn, Leonard Lyman Stephen, Mark P. Figgie

Journal of Bone and Joint Surgery - Series A   94 ( 13 )   1160 - 1165   2012.7

Increased operating room time in patients with obesity during primary total knee arthroplasty. conflicts for scheduling Reviewed

Naomi E. Gadinsky, Jacob B. Manuel, Leonard Lyman Stephen, Geoffrey H. Westrich

Journal of Arthroplasty   27 ( 6 )   1171 - 1176   2012.6

The epidemiology of reoperation after flexor tendon repair Reviewed

Christopher J. Dy, Aaron Daluiski, Huong T. Do, Alexia Hernandez-Soria, Robert Marx, Leonard Lyman Stephen

Journal of Hand Surgery   37 ( 5 )   919 - 924   2012.5

Cartilage injury after acute, isolated anterior cruciate ligament tear Immediate and longitudinal effect with clinical/MRI follow-up Reviewed

Hollis G. Potter, Sapna K. Jain, Yan Ma, Brandon R. Black, Sebastian Fung, Leonard Lyman Stephen

American Journal of Sports Medicine   40 ( 2 )   276 - 285   2012.2

Change in Preoperative Expectations in Patients Undergoing Staged Bilateral Primary Total Knee or Total Hip Arthroplasty Reviewed

Lazaros A. Poultsides, Hassan M.K. Ghomrawi, Leonard Lyman Stephen, Gina B. Aharonoff, Carol A. Mancuso, Thomas P. Sculco

Journal of Arthroplasty   27 ( 9 )   2012.1

Surgical decision making for arthroscopic partial meniscectomy in patients aged over 40 years Reviewed

Leonard Lyman Stephen, Luke S. Oh, Keith R. Reinhardt, Lisa A. Mandl, Jeffrey N. Katz, Bruce A. Levy, Robert G. Marx

Arthroscopy - Journal of Arthroscopic and Related Surgery   28 ( 4 )   2012.1

Indications and reoperation rates for total elbow arthroplasty An analysis of trends in New York State Reviewed

David M. Gay, Leonard Lyman Stephen, Huong Do, Robert N. Hotchkiss, Robert G. Marx, Aaron Daluiski

Journal of Bone and Joint Surgery - Series A   94 ( 2 )   110 - 117   2012.1

Complex ankle arthrodesis using the ilizarov method yields high rate of fusion foot and ankle Reviewed

Austin T. Fragomen, Eugene Borst, Lindsay Schachter, Leonard Lyman Stephen, S. Robert Rozbruch

Clinical orthopaedics and related research   470 ( 10 )   2864 - 2873   2012.1

Fast Track THR One Hospital's Experience with a 2-Day Length of Stay Protocol for Total Hip Replacement Reviewed

Lawrence V. Gulotta, Douglas E. Padgett, Thomas P. Sculco, Michael Urban, Leonard Lyman Stephen, Bryan J. Nestor

HSS Journal   7 ( 3 )   223 - 228   2011.10

Reliability of lower extremity alignment measurement using radiographs and PACS Reviewed

R. G. Marx, P. Grimm, K. A. Lillemoe, C. M. Robertson, O. R. Ayeni, Leonard Lyman Stephen, E. A. Bogner, H. Pavlov

Knee Surgery, Sports Traumatology, Arthroscopy   19 ( 10 )   1693 - 1698   2011.10

Infrequent physician use of implantable cardioverter-defibrillators risks patient safety Reviewed

Leonard Lyman Stephen, Art Sedrakyan, Huong Do, Renee Razzano, Alvin I. Mushlin

Heart   97 ( 20 )   1655 - 1660   2011.10

Average 7-Year Survivorship and Clinical Results of a Newer Primary Posterior Stabilized Total Knee Arthroplasty Reviewed

Jessica Ehrhardt, Naomi Gadinsky, Leonard Lyman Stephen, Daniel Markowicz, Geoffrey Westrich

HSS Journal   7 ( 2 )   120 - 124   2011.7

Imatinib mesylate (Gleevec) in the treatment of diffuse cutaneous systemic sclerosis Results of a 1-year, phase IIa, single-arm, open-label clinical trial Reviewed

Robert F. Spiera, Jessica K. Gordon, Jamie N. Mersten, Cynthia M. Magro, Mansi Mehta, Horatio F. Wildman, Stacey Kloiber, Kyriakos A. Kirou, Leonard Lyman Stephen, Mary K. Crow

Annals of the Rheumatic Diseases   70 ( 6 )   1003 - 1009   2011.6

Effect of shoulder stabilization on career length in national football league athletes Reviewed

Robert H. Brophy, Corey S. Gill, Leonard Lyman Stephen, Ronnie P. Barnes, Scott A. Rodeo, Russell F. Warren

American Journal of Sports Medicine   39 ( 4 )   704 - 709   2011.4

Risk of serious injury for young baseball pitchers A 10-year prospective study Reviewed

Glenn S. Fleisig, James R. Andrews, Gary R. Cutter, Adam Weber, Jeremy Loftice, Chris McMichael, Nina Hassell, Leonard Lyman Stephen

American Journal of Sports Medicine   39 ( 2 )   253 - 257   2011.2

Symptomatic pulmonary embolism after outpatient arthroscopic procedures of the knee The incidence and risk factors in 418 323 arthroscopies Reviewed

I. Hetsroni, Leonard Lyman Stephen, H. Do, G. Mann, R. G. Marx

Journal of Bone and Joint Surgery - Series B   93 B ( 1 )   47 - 51   2011.1

Obesity increases the risk of recurrent herniated nucleus pulposus after lumbar microdiscectomy Reviewed

Dennis S. Meredith, Russel C. Huang, Joseph Nguyen, Leonard Lyman Stephen

Spine Journal   10 ( 7 )   575 - 580   2010.7

Evaluation of early osteochondral defect repair in a rabbit model utilizing fourier transform-infrared imaging spectroscopy, magnetic resonance imaging, and quantitative T2 mapping Reviewed

Minwook Kim, Li F. Foo, Christopher Uggen, Leonard Lyman Stephen, James T. Ryaby, Daniel P. Moynihan, Daniel Anthony Grande, Hollis G. Potter, Nancy Pleshko

Tissue Engineering - Part C: Methods   16 ( 3 )   355 - 364   2010.6

The importance of visual function in the quality of life of children with uveitis Reviewed

Sheila T. Angeles-Han, Kenneth W. Griffin, Thomas J.A. Lehman, John R. Rutledge, Leonard Lyman Stephen, Joseph T. Nguyen, Melanie J. Harrison

Journal of AAPOS   14 ( 2 )   163 - 168   2010.4

Pathological neovascularization is reduced by inactivation of ADAM17 in endothelial cells but not in pericytes Reviewed

Gisela Weskamp, Karen Mendelson, Steve Swendeman, Sylvain Le Gall, Yan Ma, Leonard Lyman Stephen, Akinari Hinoki, Satoru Eguchi, Victor Guaiquil, Keisuke Horiuchi, Carl P. Blobel

Circulation research   106 ( 5 )   932 - 940   2010.3

High incidence of complications from enoxaparin treatment after arthroplasty Reviewed

Andrew S. Neviaser, Charles Chang, Leonard Lyman Stephen, Alejandro Gonzales Della Valle, Steven B. Haas

Clinical orthopaedics and related research   468 ( 1 )   115 - 119   2010.1

Mini-Midvastus vs Standard Medial Parapatellar Approach A Prospective, Randomized, Double-Blinded Study in Patients Undergoing Bilateral Total Knee Arthroplasty Reviewed

Bryan J. Nestor, Charles E. Toulson, Sherry I. Backus, Leonard Lyman Stephen, Kristin L. Foote, Russell E. Windsor

Journal of Arthroplasty   25 ( SUPPL. 6 )   5 - 11.e1   2010.1

Effect of anterior cruciate ligament reconstruction and meniscectomy on length of career in National football League athletes A Case control Study Reviewed

Robert H. Brophy, Corey S. Gill, Leonard Lyman Stephen, Ronnie P. Barnes, Scott A. Rodeo, Russell F. Warren

American Journal of Sports Medicine   37 ( 11 )   2102 - 2107   2009.12

The core and hip in soccer athletes compared by gender Reviewed

R. H. Brophy, T. A. Chiaia, R. Maschi, C. C. Dodson, L. S. Oh, Leonard Lyman Stephen, A. A. Allen, R. J. Williams

International Journal of Sports Medicine   30 ( 9 )   663 - 667   2009.11

Epidemiology of anterior cruciate ligament reconstruction. Trends, readmissions, and subsequent knee surgery Reviewed

Leonard Lyman Stephen, Panagiotis Koulouvaris, Seth Sherman, Huong Do, Lisa A. Mandl, Robert G. Marx

Journal of Bone and Joint Surgery - Series A   91 ( 10 )   2321 - 2328   2009.10

CT outperforms radiography for determination of acetabular cup version after THA Reviewed

Clinical orthopaedics and related research   467 ( 9 )   2362 - 2370   2009.9

Injectable hyaluronan for the treatment of carpometacarpal osteoarthritis Open label pilot trial Reviewed

Lisa A. Mandl, Robert N. Hotchkiss, Ronald S. Adler, Leonard Lyman Stephen, Aaron Daluiski, Scott W. Wolfe, Jeffrey N. Katz

Current Medical Research and Opinion   25 ( 9 )   2103 - 2108   2009.9

Association of low-energy femoral fractures with prolonged bisphosphonate use A case control study Reviewed

B. A. Lenart, A. S. Neviaser, Leonard Lyman Stephen, C. C. Chang, F. Edobor-Osula, B. Steele, M. C.H. Van Der Meulen, D. G. Lorich, J. M. Lane

Osteoporosis International   20 ( 8 )   1353 - 1362   2009.8

Predictive value of prior injury on career in professional american football is affected by player position Reviewed

Robert H. Brophy, Leonard Lyman Stephen, Eric L. Chehab, Ronnie P. Barnes, Scott A. Rodeo, Russell F. Warren

American Journal of Sports Medicine   37 ( 4 )   768 - 775   2009.4

Medial collateral ligament injuries and subsequent load on the anterior cruciate ligament A biomechanical evaluation in a cadaveric model Reviewed

Michael J. Battaglia, Mark W. Lenhoff, John R. Ehteshami, Leonard Lyman Stephen, Matthew T. Provencher, Thomas L. Wickiewicz, Russell F. Warren

American Journal of Sports Medicine   37 ( 2 )   305 - 311   2009.2

Deep vein thrombosis after reconstructive shoulder arthroplasty A prospective observational study Reviewed

Andrew A. Willis, Russell F. Warren, Edward V. Craig, Ronald S. Adler, Frank A. Cordasco, Leonard Lyman Stephen, Stephen Fealy

Journal of Shoulder and Elbow Surgery   18 ( 1 )   100 - 106   2009.1

Validity of same-side reoperation after total hip and knee arthroplasty using administrative databases. Reviewed

Leonard Lyman Stephen, Warren R. Dunn, Chris Spock, Peter B. Bach, Lisa A. Mandl, Robert G. Marx

The journal of knee surgery   22 ( 1 )   17 - 20   2009.1

Randomized prospective evaluation of adjuvant hyaluronic acid therapy administered after knee arthroscopy. Reviewed

Geoffrey Westrich, Sarah Schaefer, Sarah Walcott-Sapp, Leonard Lyman Stephen

American journal of orthopedics (Belle Mead, N.J.)   38 ( 12 )   612 - 616   2009.1

Prospective analysis of arthroscopic rotator cuff repair Prognostic factors affecting clinical and ultrasound outcome Reviewed

Shane J. Nho, Barrett S. Brown, Leonard Lyman Stephen, Ronald S. Adler, David W. Altchek, John D. MacGillivray

Journal of Shoulder and Elbow Surgery   18 ( 1 )   13 - 20   2009.1

Predictive value of orthopedic evaluation and injury history at the NFL combine Reviewed

Robert H. Brophy, Eric L. Chehab, Ronnie P. Barnes, Leonard Lyman Stephen, Scott A. Rodeo, Russell F. Warren

Medicine and Science in Sports and Exercise   40 ( 8 )   1368 - 1372   2008.12

One- versus two-incision technique for distal biceps tendon repair Reviewed

Timothy S. Johnson, David C. Johnson, Michael K. Shindle, Answorth A. Allen, Andrew J. Weiland, John Cavanaugh, Dennis Noonan, Leonard Lyman Stephen

HSS Journal   4 ( 2 )   117 - 122   2008.9

Vitamin D deficiency A common occurrence in both high-and low-energy fractures Reviewed

Barbara Steele, Alana Serota, David L. Helfet, Margaret Peterson, Leonard Lyman Stephen, Joseph M. Lane

HSS Journal   4 ( 2 )   143 - 148   2008.9

Rotator cuff in asymptomatic volunteers Contrast-enhanced US depiction of intratendinous and peritendinous vascularity Reviewed

Ronald S. Adler, Stephen Fealy, Jonas R. Rudzki, Warren Kadrmas, Nikhil N. Verma, Andrew Pearle, Leonard Lyman Stephen, Russell F. Warren

Radiology   248 ( 3 )   954 - 961   2008.9

Potent anticoagulants are associated with a higher all-cause mortality rate after hip and knee arthroplasty Reviewed

Nigel E. Sharrock, Alejandro Gonzalez Della Valle, George Go, Leonard Lyman Stephen, Eduardo A. Salvati

Clinical orthopaedics and related research   466 ( 3 )   714 - 721   2008.3

Risk factors for readmission and revision surgery following rotator cuff repair Reviewed

Seth L. Sherman, Leonard Lyman Stephen, Panagiotis Koulouvaris, Andrew Willis, Robert G. Marx

Clinical orthopaedics and related research   466 ( 3 )   608 - 613   2008.3

Femoral revision with an extensively hydroxyapatite-coated femoral component Reviewed

Lawrence V. Gulotta, Andreas Baldini, Kristin Foote, Leonard Lyman Stephen, Bryan J. Nestor

HSS Journal   4 ( 1 )   55 - 61   2008.2

Contrast-enhanced ultrasound characterization of the vascularity of the rotator cuff tendon Age- and activity-related changes in the intact asymptomatic rotator cuff Reviewed

Jonas R. Rudzki, Ronald S. Adler, Russell F. Warren, Warren R. Kadrmas, Nikhail Verma, Andrew D. Pearle, Leonard Lyman Stephen, Stephen Fealy

Journal of Shoulder and Elbow Surgery   17 ( 1 SUPPL. )   2008.1

Could preoperative preferences and expectations influence surgical decision making? Rheumatoid arthritis patients contemplating metacarpophalangeal joint arthroplasty Reviewed

Lisa A. Mandl, Frank D. Burke, E. F. Shaw Wilgis, Leonard Lyman Stephen, Jeffrey N. Katz, Kevin C. Chung

Plastic and Reconstructive Surgery   121 ( 1 )   175 - 180   2008.1

Lower extremity muscle activation and alignment during the soccer instep and side-foot kicks Reviewed

Robert H. Brophy, Sherry I. Backus, Brian S. Pansy, Leonard Lyman Stephen, Riley J. Williams

Journal of Orthopaedic and Sports Physical Therapy   37 ( 5 )   260 - 268   2007.5

Hydrogel meniscal replacement in the sheep knee Preliminary evaluation of chondroprotective effects Reviewed

Bryan T. Kelly, William Robertson, Hollis G. Potter, Xiang Hua Deng, A. Simon Turner, Leonard Lyman Stephen, Russell F. Warren, Scott A. Rodeo

American Journal of Sports Medicine   35 ( 1 )   43 - 52   2007.1

Acetabular revision with the contour antiprotrusio cage 2- to 5-Year followup Reviewed

Mathias P. Bostrom, Andrew P. Lehman, Robert L. Buly, Leonard Lyman Stephen, Bryan J. Nestor

Clinical orthopaedics and related research   ( 453 )   188 - 194   2006.12

High failure rate of a modern, proximally roughened, cemented stem for total hip arthroplasty Reviewed

International Orthopaedics   30 ( 4 )   243 - 247   2006.8

Prevalence and risk factors for symptomatic thromboembolic events after shoulder arthroplasty Reviewed

Leonard Lyman Stephen, Seth Sherman, Timothy I. Carter, Peter B. Bach, Lisa A. Mandl, Robert G. Marx

Clinical Orthopaedics and Related Research   ( 448 )   152 - 156   2006.7

Measurement error of lumbar total disc replacement range of motion Reviewed

Moe R. Lim, Randall T. Loder, Russel C. Huang, Leonard Lyman Stephen, Kai Zhang, Andrew Sama, Elias C. Papadopoulos, Kristin Warner, Federico P. Girardi, Frank P. Cammisa

Spine   31 ( 10 )   2006.5

Baseball injuries

Stephen Lyman, Glenn S. Fleisig

Epidemiology of Pediatric Sports Injuries Team Sports   9 - 30   2005.12

Multirater agreement of arthroscopic grading of knee articular cartilage Reviewed

Robert G. Marx, Jason Connor, Leonard Lyman Stephen, Annunziato Amendola, Jack T. Andrish, Christopher Kaeding, Eric C. McCarty, Richard D. Parker, Rick W. Wright, Kurt P. Spindler

American Journal of Sports Medicine   33 ( 11 )   1654 - 1657   2005.11

Reliability and accuracy of MRI scanogram in the evaluation of limb length discrepancy Reviewed

Anne H. Leitzes, Hollis G. Potter, Terry Amaral, Robert G. Marx, Leonard Lyman Stephen, Roger F. Widmann

Journal of Pediatric Orthopaedics   25 ( 6 )   747 - 749   2005.11

Variation in orthopaedic surgeons' perceptions about the indications for rotator cuff surgery Reviewed

Warren R. Dunn, Bruce R. Schackman, Colin Walsh, Leonard Lyman Stephen, Edward C. Jones, Russell F. Warren, Robert G. Marx

Journal of Bone and Joint Surgery - Series A   87 ( 9 I )   1978 - 1984   2005.9

Advancements in the surgical and alternative treatment of arthritis Reviewed

Leonard Lyman Stephen, Seth Sherman, Warren R. Dunn, Robert G. Marx

Current Opinion in Rheumatology   17 ( 2 )   129 - 133   2005.3

The association between hospital volume and total shoulder arthroplasty outcomes Reviewed

Leonard Lyman Stephen, Edward C. Jones, Peter B. Bach, Margaret G.E. Peterson, Robert G. Marx

Clinical Orthopaedics and Related Research   ( 432 )   132 - 137   2005.3

American collegiate men's ice hockey An analysis of injuries Reviewed

Kyle Flik, Leonard Lyman Stephen, Robert G. Marx

American Journal of Sports Medicine   33 ( 2 )   183 - 187   2005.2

The effect of anterior cruciate ligament reconstruction on the risk of knee reinjury Reviewed

Warren R. Dunn, Leonard Lyman Stephen, Andrew E. Lincoln, Paul J. Amoroso, Thomas Wickiewicz, Robert G. Marx

American Journal of Sports Medicine   32 ( 8 )   1906 - 1914   2004.12

Mini-incision for total hip arthroplasty A prospective, controlled investigation with 5-year follow-up evaluation Reviewed

John M. Wright, Heber C. Crockett, Sam Delgado, Leonard Lyman Stephen, Mike Madsen, Thomas P. Sculco

Journal of Arthroplasty   19 ( 5 )   538 - 545   2004.8

Baseball Accuracy of qualitative analysis for assessment of skilled baseball pitching technique Reviewed

Rochelle Nicholls, Bruce Elliott, Glenn Fleisig, Leonard Lyman Stephen, Edmund Osinski

Sports Biomechanics   2 ( 2 )   213 - 226   2003.7

Effect of pitch type, pitch count, and pitching mechanics on risk of elbow and shoulder pain in youth baseball pitchers Reviewed

Leonard Lyman Stephen, Glenn S. Fleisig, James R. Andrews, E. David Osinski

American Journal of Sports Medicine   30 ( 4 )   463 - 468   2002.1

Osseous adaptation and range of motion at the glenohumeral joint in professional baseball pitchers Reviewed

Heber C. Crockett, Lyndon B. Gross, Kevin E. Wilk, Martin L. Schwartz, Jamie Reed, Jay O'Mara, Michael T. Reilly, Jeffery R. Dugas, Keith Meister, Leonard Lyman Stephen, James R. Andrews

American Journal of Sports Medicine   30 ( 1 )   20 - 26   2002.1

Heel Pain Triad (HPT) The combination of plantar fasciitis, posterior tibial tendon dysfunction and tarsal tunnel syndrome Reviewed

Sameh A. Labib, John S. Gould, Felix A. Rodriguez-del-Rio, Leonard Lyman Stephen

Foot and Ankle International   23 ( 3 )   212 - 220   2002.1

Longitudinal study of elbow and shoulder pain in youth baseball pitchers Reviewed

Leonard Lyman Stephen, G. S. Fleisig, J. W. Waterbor, E. M. Funkhouser, L. Pulley, J. R. Andrews, E. D. Osinki, J. M. Roseman

Medicine and Science in Sports and Exercise   33 ( 11 )   1803 - 1810   2001.1

Relationship of pelvis and upper torso kinematics to pitched baseball velocity Reviewed

David F. Stodden, Glenn S. Fleisig, Scott P. McLean, Leonard Lyman Stephen, James R. Andrews

Journal of Applied Biomechanics   17 ( 2 )   164 - 172   2001.1

History of agricultural injury among farmers in Alabama and Mississippi Prevalence, characteristics, and associated factors Reviewed

Leonard Lyman Stephen, Gerald McGwin, Richard Enochs, Jeffrey M. Roseman

American Journal of Industrial Medicine   35 ( 5 )   499 - 510   1999.1

Responsiveness of the J-KOOS+ following Total Knee Arthroplasty Invited

Stephen Lyman, Go Omori, Masataka Deie, Norimasa Nakamura, Toshiaki Takahashi, Harukazu Tohyama, Nosh Fukui, Hiroshi Ikeda, Takahisa Sasho

JOSKAS  2020.12 

Baseball Injuries Symposium Invited International conference

Stephen Lyman

Baseball HQ  2020.10 

Challenges in Surgical Trials Invited International conference

Stephen Lyman

2020.10 

Should Cost be a Measure of Success? Invited International conference

Stephen Lyman

International Cartilage Repair Society  2019.10 

Spring Training Injuries Invited International conference

Stephen Lyman

Baseball HQ  2020.2 

Social Media to Promote Your Research Invited International conference

#Stephen Lyman

International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine (ISAKOS)  2019.5 

Utility of MRI to Predict Severity and Location of Pathology at Arthroscopy in FAI Patients International conference

#Stephen Lyman PhD, @Danyal Nawabi MD FRCS, @Alissa Burge MD, @Kara Fields MS, @Bryan Kelly MD, @Matthew Koff PhD, @Hollis Potter MD, @Robert G. Marx MD MSc FRCSC

International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine (ISAKOS)  2019.5 

Basic Statistics (in 7 minutes) Invited International conference

#Stephen Lyman PhD

International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine (ISAKOS)  2019.5 

Reply

Benedict U. Nwachukwu, Cynthia A. Kahlenberg, Jason D. Lehman, Leonard Lyman Stephen, Robert G. Marx

Orthopedics   2018.1

Patient-reported outcome measurement for patients with total knee arthroplasty

Leonard Lyman Stephen, Kaitlyn L. Yin

Journal of the American Academy of Orthopaedic Surgeons   2017.1

Authors’ Reply

2016.8

Patient-Reported Outcome Measures-What Data Do We Really Need?

Leonard Lyman Stephen, Chisa Hidaka

Journal of Arthroplasty   2016.6

Patient-reported outcome measures in arthroplasty registries Report of the Patient-Reported Outcome Measures Working Group of the International Society of Arthroplasty RegistriesPart II. Recommendations for selection, administration, and analysis

Acta Orthopaedica   2016.6

Patient-reported outcome measures in arthroplasty registries Report of the Patient-Reported Outcome Measures Working Group of the International Society of Arthroplasty Registries: Part I. Overview and rationale for patient-reported outcome measures

Acta Orthopaedica   2016.6

Cartilage-repair innovation at a standstill Methodologic and regulatory pathways to breaking free

Leonard Lyman Stephen, Norimasa Nakamura, Brian J. Cole, Christoph Erggelet, Andreas H. Gomoll, Jack Farr

Journal of Bone and Joint Surgery - American Volume   2016.1

CORR Insights ^® Women Demonstrate More Pain and Worse Function Before THA but Comparable Results 12 Months After Surgery

2015.9

CORR Insights ^® Do Claims-based Comorbidities Adequately Capture Case Mix for Surgical Site Infections?

2015.5

Quantifying clinically significant change A brief review of methods and presentation of a hybrid approach

Barton J. Mann, Taco Gosens, Leonard Lyman Stephen

American Journal of Sports Medicine   2012.10

ISAKOS scientific committee research methods handbook. A practical guide to research Design, execution, and publication (Arthroscopy: The Journal of Arthroscopic and Related Surgery)

Arthroscopy - Journal of Arthroscopic and Related Surgery   2011.6

A practical guide to research design, execution, and publication.

Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association   2011.4

Higher hospital volume and specialisation

Leonard Lyman Stephen

BMJ (Online)   2010.2

Cost-effectiveness analysis of an established, effective procedure

Leonard Lyman Stephen, Robert G. Marx, Peter B. Bach

Archives of Internal Medicine   2009.6

Reply to letter to editor Potent anticoagulants are associated with a higher all-cause mortality rate after hip and knee arthroplasty

Nigel E. Sharrock, Alejandro Gonzalez Della Valle, George Go, Leonard Lyman Stephen, Eduardo A. Salvati

Clinical orthopaedics and related research   2008.8

The coronal plane high tibial osteotomy. Part 1 A clinical and radiographic analysis of intermediate term outcomes

Keith M. Baumgarten, Stephen Fealy, Leonard Lyman Stephen, Thomas L. Wickiewicz

HSS Journal   2007.9

Systematic review of arthroscopic rotator cuff repair and mini-open rotator cuff repair

Shane J. Nho, Michael K. Shindle, Seth L. Sherman, Kevin B. Freedman, Leonard Lyman Stephen, John D. MacGillivray

Journal of Bone and Joint Surgery - Series A   2007.1

Small area variation in orthopedics.

Warren R. Dunn, Leonard Lyman Stephen, Robert G. Marx

The journal of knee surgery   2005.1

Research methodology

Warren R. Dunn, Leonard Lyman Stephen, Robert Marx

Arthroscopy - Journal of Arthroscopic and Related Surgery   2003.1

Letters to the editor (multiple letters)

Leonard Lyman Stephen

American Journal of Sports Medicine   2000.12

The effect of neuromuscular training on the incidence of knee injury in female athletes a prospective study.

Leonard Lyman Stephen

American Journal of Sports Medicine   2000.11

International Society of Arthroplasty Registries   Member, ISAR Patient Reported Outcomes Committee   Foreign country

2016.5 - 2026.5   

International Society of Arthroscopy, Knee Surgery & Orthopaedic Sports Medicine   Steering committee member   Foreign country

2009.5 - 2022.5   

International Society of Arthroscopy, Knee Surgery & Orthopaedic Sports Medicine   Member, ISAKOS Scientific Committee   Foreign country

2009.5 - 2022.5   

Invited Speaker International contribution

ISAKOS World Congress  （ South Africa (online) SouthAfrica ） 2021.11

Screening of academic papers

Role(s)： Peer review

2021

Moderator, invited speaker

JOSKAS  （ Kobe Japan ） 2020.12

Screening of academic papers

Role(s)： Peer review

2020

Moderator, invited speaker International contribution

International Cartilage Repair Society (ICRS) World Congress  （ Vancouver Canada ） 2019.10

Introduciton to Surgical Trials International contribution

2019.7 - 2023.12

Moderator, invited speaker

JOSKAS  （ Sapporo Japan ） 2019.6

invited speaker International contribution

ISAKOS  （ Cancun Mexico ） 2019.5

Journal of ISAKOS International contribution

2019.5 - 2020.12

Screening of academic papers

Role(s)： Peer review

2019

Jouranl of Bone and Joint Surgery International contribution

2015.6 - 2024.6

Journal of ISAKOS International contribution

2015.6 - 2024.6

HSS Journal International contribution

2013.6 - 2023.6

国際医学I

2022.4 - 2022.9   First semester

専門英語

2021.4 - 2022.3   Full year

国際医学I

2021.4 - 2021.9   First semester

専門英語

2020.4 - 2021.3   Full year

国際医学I

2020.4 - 2020.9   First semester

専門英語

2019.4 - 2020.3   Full year

国際医学I

2019.4 - 2019.9   First semester

専門英語

2018.4 - 2019.3   Full year

国際医学I

2018.4 - 2018.9   First semester