Functional Results of Bilateral Reverse Total Shoulder Arthroplasty
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Background: The purpose of this study was to analyze a population of patients with bilateral reverse total shoulder arthroplasty (RTSA) to evaluate their ability to perform activities of daily living and personal hygiene tasks.
Methods: At a minimum 2-year follow-up, we retrospectively reviewed 50 patients (100 shoulders) with a mean age of 72 years who underwent staged bilateral RTSA. The average follow-up period was 61 months (range, 24-121 months), with a minimum 2-year follow-up after the second surgical procedure. Functional outcomes were assessed with American Shoulder and Elbow Surgeons, Simple Shoulder Test, and Short Form 12 (SF-12) scores. In addition, a unique questionnaire regarding personal hygiene habits and activities of daily living reliant on shoulder rotation was administered to all patients.
Results: Patients showed significant improvements in pain (mean improvement in visual analog scale score from 5.7 to 1.0, P < .001) and forward elevation (mean improvement from 71° to 136°, P < .001). Clinical outcome scores showed significant improvements: The mean American Shoulder and Elbow Surgeons score improved from 35.8 to 76.5 (P < .001), Simple Shoulder Test score improved from 2.4 to 8.0 (P < .001), SF- 12 mental component subscore improved from 51.9 to 54.1 (P < .001), and SF-12 physical component subscore improved from 30.5 to 39.7 (P < .001). Internal and external rotation showed significant improvements (from 33° to 53° [P < .005] and from 27° to 44° [P < .001], respectively). All patients retained independence with personal hygiene and activities of daily living. Complications included prosthetic instability (3%), acromial fracture (5%), and periprosthetic joint infection (1%). The overall reoperation rate was 5%.
Conclusions: Bilateral RTSA provides predictable pain relief and improved function. Hygiene practices are unaltered for most patients, and the other patients rapidly develop simple compensatory strategies and retain independence in activities of daily living.
Full Article: Functional Results of Bilateral Reverse Total Shoulder Arthroplasty
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