Arthroscopic release of the subscapularis for shoulder contracture of obstetric palsy

Objective Retrospective study of one surgeon’s experience with arthroscopic release in obstetrical brachial plexus palsy. Methods Over a four-year period, 6 patients who presented with a shoulder contracture secondary to obstetric palsy before the age of 8 years were treated arthroscopically. Small arthroscopy instruments, small shaver blades, including a 2.7-mm, 30° angled scope, and 90° radiofrequency probe, were used for this surgery. Patient selection for this approach was based on the lack of bone deformity and targeted soft tissue release. Postoperative brace immobilization for 6 weeks was used in all patients. Functional status of the patients was evaluated pre- and postoperatively with the assessment of external rotation. Results The case series consisted of 2 girls and 4 boys with a mean age of 5.1 years (range, 3–8 years). No patient was lost to follow-up, and all patients completed a minimum 1 year of clinical and radiographic follow-up. Increases in external rotation were observed in all patients. There was no intra- or postoperative complications. Conclusion Arthroscopic treatment of the shoulder contracture in obstetric palsy was found to be a safe and effective procedure in patients who are likely to undergo future tendon transfer or bone surgery.