Extended Distal Chevron Osteotomy and Akin Osteotomy using Bioabsorbable Materials for Treatment of Moderate to Severe Hallux Valgus

Abstract The purpose of this study was to investigate the suitability of bioabsorbable materials for fixation of extended distal chevron osteotomy and Akin osteotomy for the treatment of moderate to severe hallux valgus. We performed a retrospective analysis of extended distal chevron osteotomy and Akin osteotomy for the treatment of moderate to severe hallux valgus (33 patients, 42 feet). Fixation of extended distal chevron osteotomy and Akin osteotomy was performed using poly- l -lactic acid pins and polylactic acid/polyglycolic acid copolymer sutures, respectively. The radiological outcomes were evaluated based on the preoperative and 3-year follow-up intermetatarsal angle, hallux valgus angle, and hallux interphalangeal angle. The clinical results were assessed according to 3-year follow-up Manchester-Oxford Foot Questionnaire scores, patient satisfaction, and postoperative complications. All radiological and clinical results were compared with those of a control group treated with metallic implants. The mean 3-year follow-up intermetatarsal angle, hallux valgus angle, and hallux interphalangeal angle were significantly corrected from the preoperative values (all p