Congenital Convex Pes Valgus: Results of an Early Comprehensive Release and a Review of Congenital Vertical Talus at Richmond Crippled Children's Hospital and the University of Alabama in Birmingham

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Abstract
Nineteen patients with 28 feet with congenital vertical talus were reviewed. The male to female ratio was equal, and associated congenital abnormalities were found in 15 of the 19 patients. No genetic pattern was established. Fifteen of the 16 surgically corrected feet were reevaluated, with an average follow-up of 60 months. Ten of the 15 feet were found to be in the good to excellent category, and five were rated poor. Twelve of 12 feet treated by cast correction were poor. Poor prognostic signs include late age of surgical correction, associated arthrogryposis and cerebral palsy, and an increased space between the calcaneus and cuboid. Best results occurred in those patients who had early surgical correction, after 4 to 6 months of serial casting, using magnification. Surgical technique which yielded the best results involved total release of the talus from the posterior, medial, and lateral approach, with reduction of the talocalcaneal as well as the talonavicular joints with multiple pin fixation. Lengthening of the Achilles tendon, extensor tendons, and peroneal tendons and transfer of the anterior tibialis to the navicular are recommended. Navicular excision was not found to be necessary. Surgical results in those patients over 3½ years of age were found to be poor, and these individuals were considered for salvage procedures using a subtalar extra articular arthrodesis, excision of the navicular, or triple arthrodesis, depending on age.

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