This study aimed to investigate the functional outcomes of Mini-Open Rotator Cuff Repair compared to Arthroscopic rotator cuff repair surgery. The study included 20 patients, with an average age of 55 years, who underwent either open or arthroscopic rotator-cuff repair surgery. Our data showed that most patients started going back to work and engaging in regular daily activities three months after surgery. In both groups, the patients' range of motion (ROM) was 100% after three months. The CMS score responses increased after 6 months, and similarly, at 12 months, the CMS scores indicate good or excellent outcomes for both groups. Majority of the factors showed statistically insignificant p-values. However, the median ASES score increased as the follow-up months increased in both groups, with significant P-values (0.057, 0.016, and 0.016) for the scores at 3, 6, and 12 months.