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Related Concept Videos

Healing II: Complications01:24

Healing II: Complications

Complications during healing arise when tissue repair is altered by local or systemic factors. These changes involve abnormal collagen deposition, altered biomechanics, and reduced vascular supply, impairing restoration of normal structure and function.Loss of FunctionScar tissue differs significantly from the original tissue it replaces. In the skin, fibrosis lacks adnexal structures such as hair follicles, sebaceous glands, and sweat glands. Their absence reduces tactile sensitivity, impairs...

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Related Experiment Video

Updated: Jun 15, 2026

Reverse Total Shoulder Arthroplasty
10:10

Reverse Total Shoulder Arthroplasty

Published on: July 5, 2011

Reverse Shoulder Arthroplasty in Patients With Rheumatoid Arthritis and Polymyalgia Rheumatica: A Clinical and

Hussain Selmi1, Mohammed Tayyem1, Joshua Abishek1

  • 1Trauma and Orthopaedics, Watford General Hospital, West Hertfordshire Teaching Hospitals NHS Trust, Watford, GBR.

Cureus
|April 7, 2025
PubMed
Summary

Reverse shoulder arthroplasty (RSA) improves outcomes for rheumatoid arthritis (RA) and polymyalgia rheumatica (PMR) patients with rotator cuff damage. RA patients experienced greater improvements in shoulder function and scores compared to PMR patients.

Keywords:
glenohumeral jointpatient-reported outcome measurespolymyalgia rheumaticareverse shoulder arthoplastyrheumatoid arthritis

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Area of Science:

  • Orthopedics
  • Rheumatology
  • Surgical Innovation

Background:

  • Rheumatoid arthritis (RA) and polymyalgia rheumatica (PMR) are inflammatory conditions causing glenohumeral joint destruction, often necessitating joint replacement.
  • Anatomical total shoulder arthroplasty may face glenoid component loosening due to disease progression.
  • Reverse shoulder arthroplasty (RSA) is established for RA, but its efficacy in PMR is under-researched.

Purpose of the Study:

  • To compare the outcomes of reverse shoulder arthroplasty (RSA) in patients with rheumatoid arthritis (RA) versus polymyalgia rheumatica (PMR).
  • To evaluate functional and radiological improvements following RSA in these patient cohorts.

Main Methods:

  • Retrospective analysis of 30 RSA procedures (18 RA, 12 PMR) in patients with significant rotator cuff damage.
  • Standardized implants and rehabilitation protocols were used for all patients.
  • Follow-up assessments included range of motion, Oxford shoulder score (OSS), and radiological evaluation at four intervals.

Main Results:

  • Both RA and PMR groups demonstrated significant improvements in OSS and range of motion (forward flexion, abduction, external rotation).
  • Patients with RA showed significantly greater increases in OSS and post-operative range of motion compared to patients with PMR.

Conclusions:

  • RSA is a viable surgical option for inflammatory arthritis, including RA and PMR.
  • While RSA offers benefits for both conditions, patients with RA tend to achieve more substantial functional recovery than those with PMR.