Analysis on modified Chevron osteotomy combined with soft tissue release on moderate to severe hallux valgus

Objective To investigate the efficacy of modified Chevron osteotomy combined with soft tissue release on moderate to severe hallux valgus. Methods Sixty patients with moderate to severe hallux valgus admitted to Zhengzhou Orthopaedics Hospital from January 2010 to December 2015 were selected and all of them were treated by modified Chevron osteotomy combined with soft tissue release. The preoperative and postoperative American Orthopaedic Foot and Ankle Society (AOFAS) scale score, visual analogue scale (VAS) score, imaging results, satisfaction degree and complications of all patients were compared. Results After treatment, the pain, movement limitation, requirement for shoes, metatarsophalangeal (MTP) joint movement, interphalangeal (IP) joint movement, MTP-IP joint determinacy, MTP-IP related callus, force line and AOFAS total score were significantly higher than those before treatment, VAS score was significantly lower than that before treatment. After treatment, hallux valgus angle (HVA), intermetatarsal angle (IMA), distal metatarsal articular angle (DMAA), metatarsal protrusion distance (MPD) and tibial sesamoid position (TSP) were significantly lower than those before treatment (P<0.01), and the satisfaction rate of all patients was above 88%. The incidence of complications after treatment was 8.33%, and the incidence of complications at 3 months after treatment was 15.00%. Conclusions Modified Chevron osteotomy combined with soft tissue release is effective in the treatment of moderate to severe hallux valgus. The satisfaction rate is high, but it also can cause a series of complications, which needs specific clinical treatment. Key words: Modified chevron osteotomy; Soft tissue release; Foot hallux valgus; Complications