Does Reverse Shoulder Arthroplasty Improve Function and Quality of Life in Patients With Rotator Cuff Tear Arthropathy?

Background This study aims to determine the change in functional capacity and quality of life in patients who underwent reverse shoulder arthroplasty (RSA) due to rotator cuff tear arthropathy (RCTA). Methodology A total of 89 patients who underwent RSA due to RCTA between 2016 and 2022 were included in the study, as examined by the senior author. The Constant-Murley Score (CMS) was used for functional assessment, whereas the Short Form-36 (SF-36) was used for quality-of-life evaluation. The assessment scores before and after the surgery were compared to the reference values of CMS and SF-36 scores, as determined by reference studies, based on age groups. The change in functional capacity and quality of life with RSA was calculated. In addition, the impact of age and body mass index (BMI) on the results was examined. Results No differences were found in demographic data except for BMI (p = 0.026). CMS did not reach the reference values of a normal shoulder during the 12-month postoperative period. However, a significant increase of 156% in comparison to the preoperative values was detected (p < 0.001). In the postoperative period, there was a statistically significant improvement in SF-36 scores compared to preoperative scores, except for social functioning (p = 0.099) and vitality (p = 0.255) (for all other parameters, p < 0.001). In patients under the age of 65 years, all parameters except for physical functioning, physical role, and social functioning statistically reached the reference values. A decrease in CMS scores was noted with an increase in BMI, and the negative correlation further increased in the postoperative period (preoperative: r = -0.274, 12-month postoperative: r = -0.476). Conclusions RSA performed for RCTA leads to an improvement in functional outcomes and quality of life. Although there was a considerable improvement after surgery for CMS compared to preoperatively, it was observed that normal shoulder reference values ​​could not be reached. For SF-36, it was observed that it reached normal shoulder reference values, especially in patients over 65 years of age.