Arthroscopic Calcaneonavicular Coalition and Too-long Anterior Process of the Calcaneus Resection in Children.

Abstract Persistent symptomatic calcaneonavicular coalition (CNC) and too-long anterior process of the calcaneus (TLAP) are congenital disorders that can benefit from surgical treatment. The arthroscopic technique for CNC and TLAP resection has previously been described. The aim of this prospective study was to describe outcomes following arthroscopic resection of 12 (38.71%) CNC and 19 (61.29%) TLAP cases in 30 consecutive pediatric patients treated between July 2009 and March 2013. There mean age was 12.4 (range 10 to 15) years, and the mean follow-up was 55.2 (range 24 to 79) months. Radiographs, American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Scores, AOFAS pain scores, and patient satisfaction were assessed. All final postoperative imaging scans revealed complete synostosis resection without recurrence. The mean overall AOFAS Ankle-Hindfoot Score increased from 78.87 (95% confidence interval [CI] 76.74 to 81.01) to 93.06 (95% CI 91.10 to 95.03) (p