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Updated: Feb 7, 2026

Reverse Total Shoulder Arthroplasty
10:10

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Instability in Reverse Total Shoulder Arthroplasty.

Jonathan Chae1, Matthew Siljander, J Michael Wiater

  • 1From Reid Health, Richmond, IN (Dr. Chae), and Department of Orthopaedic Surgery, Beaumont Health, Royal Oak, MI, and Department of Orthopaedic Surgery, Oakland University William Beaumont School of Medicine, Rochester, MI (Dr. Siljander and Dr. Wiater).

The Journal of the American Academy of Orthopaedic Surgeons
|August 4, 2018
PubMed
Summary
This summary is machine-generated.

Reverse total shoulder arthroplasty (RTSA) is increasingly used for various shoulder conditions. Dislocation is a common complication, necessitating careful patient assessment and surgical planning to improve outcomes.

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Reconstructive Surgery

Background:

  • Indications for reverse total shoulder arthroplasty (RTSA) have broadened significantly.
  • RTSA is now utilized for glenohumeral arthritis, rotator cuff arthropathy, complex fractures, and revision arthroplasty.
  • Shoulder instability, particularly dislocation, is a recognized complication of RTSA.

Purpose of the Study:

  • To review the current literature on the management of instability following RTSA.
  • To highlight the critical factors influencing treatment decisions for RTSA dislocation.
  • To identify areas for future research to mitigate RTSA instability.

Main Methods:

  • Literature review of studies addressing reverse total shoulder arthroplasty instability.
  • Analysis of patient-specific, biomechanical, and surgical factors.
  • Synthesis of current understanding regarding RTSA dislocation management.

Main Results:

  • Dislocation rates after RTSA vary widely, ranging from 1.5% to 31%.
  • The existing body of literature on RTSA instability management is limited.
  • Comprehensive assessment of patient, biomechanical, and surgical elements is crucial for effective treatment.

Conclusions:

  • Instability remains a significant challenge in reverse total shoulder arthroplasty.
  • Further research into patient selection, implant design, surgical techniques, and biomechanics is essential.
  • Improved understanding and strategies are needed to reduce the incidence of RTSA dislocation.