Biplanar chevron osteotomy.

We retrospectively reviewed the results of using a biplanar chevron osteotomy performed on patients who presented with hallux valgus deformities with an increased distal metatarsal articular angle (DMAA). The study included 17 feet (14 patients) of 12 women and 2 men. The average follow-up was 33 months. The average American Orthopaedic Foot and Ankle Society Hallux Metatarsophalangeal-Interphalangeal Clinical Rating Score was 91. Ten of the 14 patients (13 of 17 feet) stated that they would choose to undergo the procedure again. The hallux valgus angle was improved from an average of 22 degrees to 18 degrees, the intermetatarsal angle from 11 degrees to 9 degrees, and the DMAA from 16 degrees to 9 degrees. We have demonstrated this procedure to be useful in the treatment of symptomatic bunion deformities with an increased DMAA.