Background: Many operative methods have been reported for the treatment of congenital radioulnar synostosis (CRUS) and their indications remain controversial. The aim of this study is to evaluate the clinical, radiologic, and functional results of the 2-stage derotational osteotomy with periosteal preservation for CRUS in children.
Methods: From a total of 102 children with CRUS, a retrospective evaluation of 14 consecutive patients (18 forearms) who underwent 2-stage derotational osteotomy of the distal third radius and proximal third ulna with periosteal preservation, bone segment removal, morselization and grafting and cast immobilization was performed. Children with bilateral involvement and/or pronation (>60 degrees), and substantial functional limitations in daily activities were considered candidates for surgery to obtain the desired position of 0 to 20 degrees of pronation. Electronic medical records, preoperative and postoperative clinical and radiologic examinations were reviewed. Also, functional results and parental satisfaction were assessed and statistically analyzed.
Results: The median age at the time of surgery was 6.87 (5.02 to 11.22) years. The median follow-up was 38.62 (24.79 to 81.20) months. The median preoperative pronation deformity was 80 (70 to 90) degrees, while the final position was 0 (0 to 10) degrees of pronation ( P <0.01). Elbow flexion and extension showed no changes after surgery. All patients successfully achieved union at 8 (6 to 10) weeks. No complications were observed, and no patient required revision surgeries. The ability to perform daily activities improved markedly, and all patients were satisfied with the results of the surgery.
Conclusions: Two-stage double-level intraperiosteal derotational osteotomy is a safe, simple, and effective procedure in children with CRUS with severe deformity and limitation in performing basic daily living activities. Functional improvement and patient satisfaction are total, and so far no complications have been reported.
Level Of Evidence: Level III-treatment study, retrospective comparative study.
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