| Objective To investigate the surgical outcomes of arthroscopic capsular release via a dual posterior assisted approach for the treatment of frozen shoulder.Methods A retrospective analysis was performed on patients with frozen shoulder treated at the Affiliated Hospital of Xuzhou Medical University between November 2021 and January 2024. The study included 12 male and 20 female patients, with 23 cases classified as Neviaser type Ⅱ and 9 cases classified as type Ⅲ. Arthroscopic capsular release surgery was performed in our hospital using a double posterior assisted approach. The release range included the rotator interval, middle glenohumeral ligament, anterior-inferior joint capsule, inferior joint capsule, and posterior joint capsule. Postoperative rehabilitation exercises included shoulder flexion, abduction, external rotation, and internal rotation. The Constant score, ASES score, range of motion, and VAS score were compared between preoperative and six-month postoperative follow-up assessments.Results All patients were followed up for an average of 15 months (range: 6 months to 2 years). The preoperative VAS score was (6.28±0.99) points, and the VAS score at the 6-month postoperative follow-up was (0.97±0.59) points, indicating significant pain relief and a statistically significant reduction in VAS score. The preoperative Constant score was (41.66±7.36) points, and it improved to (82.44±4.62) points at the 6-month postoperative follow-up, demonstrating a statistically significant improvement in shoulder function. The preoperative ASES score was (37.88±6.09) points, and it increased to (84.19±5.47) points at the postoperative follow-up, showing a statistically significant improvement in shoulder function. The range of motion for shoulder flexion, abduction, and external rotation improved from (65.75±12.99)°, (70.34±8.67)°, and (10.19±4.43)° preoperatively to (171.00±5.16)°, (170.5±4.40)°, and (37.91±4.82)° postoperatively, indicating statistically significant improvements in the range of motion.Conclusion Arthroscopic capsular release using a double posterior assisted approach provides a clear surgical field and complete release of the anterior-inferior capsule. This method significantly improves shoulder flexion, abduction, and external rotation, and reduces shoulder pain, making it an effective treatment for severe frozen shoulder. |
