Christopher S. Ahmad

The Human ACL Sheath Exhibits Distinct Transcriptomic Signatures and Functional Properties

James Rogot, Jennifer A. Kunes, Kurt Holuba, Roshan P. Shah et autres

The anterior cruciate ligament (ACL) has poor intrinsic healing capacity due to exposure to the intra-articular synovial environment of the knee. Therefore, tendon auto- or allograft reconstruction is the mainstay of treatment for a torn ACL. Following reconstruction, there is a high …

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Pitch Performance After Ulnar Collateral Ligament Surgery in Major League Baseball Pitchers

Michael A. Mastroianni, Jennifer A. Kunes, Morgan R. Dillon, Aaron Z. Chen et autres

Background: Return to performance after ulnar collateral ligament (UCL) surgery in Major League Baseball (MLB) pitchers has been investigated; however, pitch-specific return to performance using several advanced metrics has been minimally studied. Purpose: To evaluate pitch performance 1, 2, and 3 seasons …

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A modern advanced analytic approach to cost and performance loss analysis of ulnar collateral ligament surgery to Major League Baseball teams

Michael A. Mastroianni, Ritt R. Givens, D.Joanna Kim, Matthew R. LeVasseur et autres

Background Ulnar collateral ligament (UCL) surgery has become increasingly prevalent among Major League Baseball (MLB) pitchers. While its clinical implications have been extensively studied, the economic and performance impact on MLB teams remains incompletely understood. Methods Cost analysis on all MLB pitchers …

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Using Pitch-Tracking Metrics to Identify Warning Signs Immediately Prior to Acute Ulnar Collateral Ligament Injuries in Major League Baseball Players

Michael J. Dillon, Michael A. Mastroianni, Nicholas Frappa, Kristen F. Nicholson et autres

Background: While ulnar collateral ligament (UCL) injuries have been widely studied, no investigations have characterized the kinematics of acutely presenting UCL injuries or examined the pitch-by-pitch sequence leading up to ligamentous failure. Purpose: To use Statcast pitch-tracking metrics from Major League Baseball …

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Association Between Preoperative Patient-Reported Questionnaires and Outcomes After Ulnar Collateral Ligament Surgery

Christopher S. Ahmad, Cole Morrissette, Frank J. Alexander, Michael A. Mastroianni et autres

Background: While surgical interventions for ulnar collateral ligament (UCL) injuries in throwing athletes have improved return-to-sport rates, predicting individual recovery timelines and the risk of complications remains a challenge. The influence of a patient's preoperative status, captured through patient-reported outcomes (PROs), on …

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Elbow range of motion is stable or improves following ulnar collateral ligament repairs and reconstructions

Cole Morrissette, Frank J. Alexander, Michael A. Mastroianni, Michael G. Ciccotti et autres

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The preparticipation evaluation of the young athlete—an update to what the orthopedic surgeon needs to know

Grace C. Plassche, Daniel J. Miller, Robert A. Christian, David P. Trofa et autres

The preparticipation evaluation (PPE) continues to be a recommended and widely used tool in identifying athletes with health conditions or injury risks that may impact their athletic participation. In the last 10 years, updates to the PPE mirror the increasing impacts of …

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The Impact of Resilience on Injury Incidence, Recovery, and Performance in Athletes: A Systematic Review

Michael A. Mastroianni, Brian F. Timoney, Abed Abdelaziz, Marcos González et autres

Background: Athletes regularly face physical and psychological adversities that test their resilience. Consequently, resilience may play a significant role in shaping athletes' performance and overall well-being. Therefore, resilience's influence on crucial outcomes within sports medicine, such as injury rates, recovery processes, and …

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The Impact of the Pitch Clock on UCL Surgery Rates and Performance in Major League Baseball Pitchers

Michael A. Mastroianni, Prashanth Kumar, Abed Abdelaziz, Brian F. Timoney et autres

Background: Major League Baseball (MLB) implemented a new Pitch Clock in 2023, sparking debate on whether it has affected injuries among pitchers. Hypothesis: Introduction of the Pitch Clock would have no impact on ulnar collateral ligament (UCL) surgery rates or pitcher performance. …

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The Elbow Ulnar Collateral Ligament Injury Prognosis Score

Elizabeth R. Dennis, Michael A. Mastroianni, John D. Mueller, Urvi Awasthi et autres

Background: No model exists to predict which patients with elbow ulnar collateral ligament (UCL) injuries will successfully return to play (RTP) after nonoperative treatment. The reported rates for successful RTP after the nonoperative management of UCL injuries are limited and vary widely. …

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Poster 50: Return to Performance Following UCL Surgery in Major League Baseball Pitchers

Michael A. Mastroianni, Jennifer A. Kunes, Dany El-Najjar, Kyle K. Obana et autres

Objectives: While return to play is important for Major League Baseball (MLB) pitchers and teams, return to performance following UCL surgery using modern advanced analytic and pitch-tracking metrics has not been well studied despite their wide-spread value throughout the league. Therefore, the …

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The Orthopaedic Surgeon's Guide to Surfing Injuries

Charles A. Popkin, Kyle K. Obana, William N. Levine, Christopher S. Ahmad

Since popularized by Native Hawaiian Olympian, Duke Kahanamoku, in the early 20th century, surfing has grown into a globally popular sport. Because the prevalence of surfing continues to grow, physicians should be familiar with traumatic and atraumatic surfing injuries to guide treatment …

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