Modified Woodward Technique for Sprengel Deformity and a Modification of the Cavendish Classification.

INTRODUCTION: Sprengel deformity (SD) is the most common congenital anomaly of the shoulder. Surgery is required for moderate and severe forms. The modified Woodward procedure is the most widely used procedure for the surgical treatment. METHODS: SD patients who applied to our institution between 2005 and 2018 were retrospectively reviewed. A modification of the Cavendish classification was used for preoperative and postoperative evaluations. RESULTS: Eighteen shoulders of 17 (mean age: 8.5 y, range: 2 to 18 y, 5 males and 12 females) patients were included. The right, left, and bilateral shoulders were affected in 9, 7, and 1 cases, respectively. The mean follow-up time was 62.9 months (12 to 161 mo). Preoperatively, 3 shoulders were type 2, 12 shoulders were type 3, and 3 shoulders were type 4 according to the Cavendish classification and 2 shoulders were type 0, 6 shoulders were type 1, and 10 shoulders were type 2 postoperatively. CONCLUSIONS: Periscapular congenital malformations play a significant role in range of motion limitation. The modified Woodward procedure is a viable alternative in the surgical treatment of SD and the proposed modification of Cavendish classification (grade 0) is functional.