Isokinetic shoulder strength correlates with level of sports participation and functional activity after reverse total shoulder arthroplasty
Section snippets
Methods
A retrospective study was performed of all patients having undergone RTSA by 1 of 2 experienced shoulder surgeons (A.W. and P.C.) during the period 2008 to 2013. During this period, 83 RTSAs were performed. Study inclusion criteria were age between 65 and 80 years at the time of surgery and a minimum of 12 months from the time of surgery to the time of evaluation. Formal physical therapy and supervised rehabilitation had ceased by the time of study recruitment in all patients. Exclusion
Patient characteristics
Of 69 patients identified and fulfilling the study inclusion and exclusion criteria, 51 patients consented to participate in the study. The average age at the time of surgery was 74.1 years. The mean follow-up time from surgery was 29.5 months. Of the 51 subjects, 27 (52%) were female; 49 (96%) of the subjects evaluated were right hand dominant. Surgery was performed on the right shoulder in 27 (53%) of the cases.
The indications for RTSA were rotator cuff arthropathy or massive cuff tear with
Discussion
Early studies of RTSA have reported high complication rates, and surgery was initially recommended for low-demand and older patients with the goals of restoring comfort and overhead motion.6, 8 The semiconstrained implant design and risk of accelerated polyethylene wear, scapular notching, and risk of implant failure have resulted in caution for surgeons performing RTSA in young and active patients.4, 6, 8 Golant et al,5 in a survey of 310 surgeons, reported that 74% of respondents allowed
Conclusion
In the short term after RTSA, 78% of patients had returned to moderate- or high-level recreational and sporting activity. This study finds that patients demonstrating greater isokinetic shoulder strength, especially in internal rotation and forward flexion, participate in higher demand recreational or sports activity and report fewer difficulties with activities of daily living.
Disclaimer
LIMA Corporate (Udine, Italy) provided financial assistance in the Biodex evaluation for this study.
The authors, their immediate families, and any research foundation with which they are affiliated have not received any financial payments or other benefits from any commercial entity related to the subject of this article.
Acknowledgment
Dr Louise Sang assisted in the preparation of this manuscript.
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Cited by (0)
This research was approved by the University of Western Australia Human Research Ethics Committee (No. 2013-094).