[Arthroscopic capsular release for frozen shoulder].

Objectives: This study was designed to evaluate the results and technical considerations of arthroscopic capsular release of the glenohumeral joint in frozen shoulder disease.

Methods: Arthroscopic capsular release was performed in 16 patients (11 women, 5 men; mean age 51 years; range 40 to 60 years) unresponsive to physical therapy. The affected shoulder was on the right in 10 patients, and on the left in six, being on the dominant side in 12 patients. The duration of the patients' complaints ranged from six to 24 months. Preoperatively, the mean forward flexion was 92 degrees, external rotation was 14 degrees; the ranges of internal rotation were the trochanter in four patients, the gluteal region in seven patients, the lumbosacral region in one patient, the L3 level in one patient, and T12 level in three patients. Functional evaluations were made according to the Constant scoring system. The mean follow-up was 17.3 months (range 12 to 30 months).

Results: Postoperatively, the mean forward flexion and external rotation increased to 135 and 27 degrees, respectively. Internal rotation reached the gluteal region in two patients, the lumbosacral region in two patients, the L3 level in two patients, T12 level in nine patients, and the interscapular region in one patient. The mean Constant score improved by 47 points.

Conclusion: Arthroscopic capsular release is a safe and effective surgical procedure in the management of frozen shoulder disease unresponsive to conservative treatment.