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Related Experiment Videos

Unconstrained shoulder arthroplasty. A five-year average follow-up study.

A P Weiss1, M A Adams, J R Moore

  • 1Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205.

Clinical Orthopaedics and Related Research
|August 1, 1990
PubMed
Summary

Total shoulder arthroplasty significantly improved pain and range of motion in patients. However, rotator cuff issues may impact outcomes, and complications like component loosening can occur.

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Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • Total shoulder arthroplasty (TSA) and hemiarthroplasty are surgical options for severe shoulder joint damage.
  • Prosthesis selection (e.g., English-McNab, Neer) may influence outcomes.

Purpose of the Study:

  • To evaluate the long-term clinical outcomes and complications of TSA and hemiarthroplasty.
  • To identify factors affecting postoperative function.

Main Methods:

  • Retrospective review of 46 shoulder arthroplasties (42 TSA, 4 hemiarthroplasty).
  • Average follow-up of 5 years (minimum 3 years).
  • Analysis of preoperative diagnoses, prosthesis type, and postoperative outcomes.

Main Results:

  • 94% of patients reported improved pain post-surgery.

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  • Significant average improvements in active range of motion (42° abduction, 47° flexion).
  • Rotator cuff lesions correlated with poorer function; 9% complication rate observed.

    • Conclusions:

    • Shoulder arthroplasty offers substantial pain relief and functional improvement.
    • Pre-existing rotator cuff pathology is a negative prognostic factor.
    • While generally safe, potential complications include component issues and, rarely, infection.