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Functional internal rotation greater after primary anatomic shoulder arthroplasty vs primary RSA
Compared with primary reverse shoulder arthroplasty, primary anatomic total shoulder arthroplasty demonstrated greater functional internal rotation; however, both procedures were found to be effective for toileting management, according to researchers.
The researchers retrospectively reviewed 91 patients who underwent reverse shoulder arthroplasty (RSA) and 132 patients who underwent total shoulder arthroplasty (TSA). Median follow-up for RSA and TSA was 35 months and 37 months, respectively. Active range of motion and subjective internal rotation were measured, and the researchers assessed internal rotation strength with the five-point Oxford scale. Additionally, specific questions isolated from the Simple Shoulder Test and American Shoulder and Elbow Surgeons (ASES) questionnaire that dealt with internal rotation function were reviewed.
Results showed patients who underwent TSA were more likely to be able to reach the small of the back and wash the back or fasten a bra compared with patients who underwent RSA. TSA patients also reported significantly greater subjective internal rotation range of motion and active internal rotation compared with RSA patients, according to the researchers. No significant differences were observed between the two groups with regard to patients’ ability to manage toileting.
Subanalysis results showed the median age of RSA patients was 70 years, which was considered statistically significantly lower than TSA patients, who had a median age of 76 years. ‒ by Monica Jaramillo
Disclosures: Triplet reports no relevant financial disclosures. Please see the full study for a list of all other authors’ relevant financial disclosures.