title: Basal metatarsal osteotomy for hallux valgus.
abstract: We performed basal chevron metatarsal osteotomy on 32 feet (31 patients) for painful hallux valgus associated with an increased intermetatarsal 1/2 angle (> 12 degrees). Pedobarographic and radiological examinations were done preoperatively and at a minimum of six months postoperatively. 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 to 6.8 degrees. The mean angle of declination of the first metatarsal was decreased by 1.4 degrees. The pedobarographs showed a significant reduction in areas sustaining pressure > 5 kg/cm2, an increased total foot 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.
authors.affiliation: St Mary's Orthopaedic Hospital, Dublin, Republic of Ireland.
authors.forename: D C
authors.initials: DC
authors.lastname: Borton
authors.forename: M M
authors.initials: MM
authors.lastname: Stephens
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005528:Foot / Q000502:physiology; D005684:Gait; D006215:Hallux Valgus / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D008684:Metatarsus / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D010027:Osteotomy / Q000379:methods*; D017060:Patient Satisfaction; D011312:Pressure; D011859:Radiography