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Return to Play and Performance After Shoulder Labral Repair in Major League Baseball Players
Michael A Mastroianni1, Morgan R Dillon2, James Muscat3
1Department of Orthopedics, Columbia University Medical Center, New York, New York, USA.
Orthopaedic Journal of Sports Medicine
|March 5, 2026
Summary
Major League Baseball pitchers have a guarded prognosis after shoulder labral repair, with lower return-to-play rates and performance compared to position players. Advanced analytics reveal declines in pitch quality and command for pitchers post-surgery.
Area of Science:
- Orthopedic surgery and sports medicine focusing on baseball athletes.
- Application of advanced analytics and ball-tracking technology in sports performance evaluation.
Background:
- Return to play (RTP) and return to performance (RTPf) after shoulder labral repair in Major League Baseball (MLB) players are not well-defined.
- Advanced analytics offer a method for comprehensive postoperative performance assessment.
Purpose of the Study:
- To evaluate RTP and RTPf in MLB pitchers and position players following primary shoulder labral repair.
- Utilize advanced analytic and ball-tracking metrics to assess player performance post-surgery.
Main Methods:
- A cohort study (Level of evidence, 3) compared 67 MLB players (39 pitchers, 28 position players) undergoing labral repair with matched controls.
- RTP rates and timing were recorded; RTPf analysis used advanced analytics for players with pre- and postoperative data.
- Pitchers' metrics included pitch quality, command, and overall ability; paired t-tests compared pre- and postoperative performance.
Main Results:
- Overall RTP rate was 64.2%, with significantly lower rates (43.6%) and longer recovery (493 days) for pitchers versus position players (92.9%, 285 days).
- Position players showed no significant differences in offensive or defensive metrics postoperatively.
- Pitchers had no significant changes in traditional metrics (velocity, spin, movement) but showed decreased workload, value, pitch quality, and command in the first season post-surgery.
Conclusions:
- Shoulder labral repair prognosis in MLB is role-dependent; position players generally recover well, while pitchers face a guarded prognosis.
- Pitchers have lower RTP rates and longer recovery times, with advanced analytics indicating reduced pitch quality and command despite unchanged traditional metrics.
- Pitchers experience decreased workload and value post-surgery, with performance deficits noted primarily in the first season back.
