Breast cancer patients undergoing modified radical mastectomy are at risk of postoperative pain, shoulder dysfunction, and impaired quality of life, which may be associated with postoperative inflammatory responses. Preoperative rehabilitation strategies, including shoulder range-of-motion exercises, have been proposed to improve postoperative recovery, but evidence in patients with locally advanced breast cancer remains limited.
This study aims to evaluate the effects of a structured preoperative shoulder range-of-motion exercise program on postoperative inflammatory markers, specifically C-reactive protein (CRP), as well as pain intensity, shoulder joint function, and quality of life in patients with locally advanced breast cancer undergoing modified radical mastectomy.