Comparative Outcomes of Subacromial Decompression and Closed Manipulation in Patients with Impingement Syndrome and Stiff Shoulder: A Prospective Study

Abstract

A prospective study evaluated the treatment outcomes for impingement syndrome and stiff shoulder. A total of 200 patients were enrolled in the study, 152 with impingement syndrome alone (Group A) and 48 with impingement syndrome and stiff shoulder (Group B). Under anesthesia, Group A underwent subacromial decompression, while Group B underwent closed manipulation. Among group A and group B patients, 81% and 68% achieved satisfactory outcomes, respectively. Diabetic patients in Group A achieved satisfactory results in 82% of cases, while those in Group B achieved satisfactory results in 44% of cases. Study results indicate that postoperative external rotation range of motion is lower in Group B, indicating an additional procedure targeting the anterior capsule or rotator interval could improve patient function. As a result of performing acromioplasty on patients with stiff shoulders and impingement syndrome, stiffness was not exacerbated. A preoperative counseling session is essential for setting appropriate treatment expectations, especially for patients who have diabetes and stiff shoulders.