BASAL METATARSAL OSTEOTOMY FOR HALLUX-VALGUS

We performed basal chevron metatarsal osteotomy on 32 feet (31 patient s) for painful hallux valgus associated with an increased intermetatar sal 1/2 angle (>12 degrees). Pedobarographic and radiological examinat ions were done preoperatively and at a minimum of six months postopera tively. The average hallux valgus angle was improved from 40.9 degrees to 19.2 degrees and the intermetatarsal 1/2 angle from 16.5 degrees t o 6.8 degrees. The mean angle of declination of the first metatarsal w as decreased by 1.4 degrees. The pedobarographs showed a significant r eduction in areas sustaining pressure >5kg/cm(2), an increased total f oot contact area and a higher percentage forefoot contact area on heel raise. There was a high level of patient satisfaction with relief of symptoms and improved appearance of the foot.