LEG, ANKLE AND FOOTFoot anomalies in Antley–Bixler syndrome: three case reportsNakamura, Naoyukia; Adachi, Masanorib; Machida, Jiroa; Okuzumi, ShigeharuaAuthor Information Departments of aOrthopaedics Surgery bEndocrinology and Metabolism, Kanagawa Children's Medical Centre, Minami-ku, Yokohama City, Japan Correspondence to Dr Naoyuki Nakamura, Department of Orthopaedics Surgery, Kanagawa Children's Medical Centre, Mutsukawa 2-138-4, Minami-ku, Yokohama City 232-8555, Japan Tel: +81 45 711 2351; fax: +81 45 721 3324; e-mail: email@example.com Journal of Pediatric Orthopaedics B: September 2008 - Volume 17 - Issue 5 - p 241-245 doi: 10.1097/BPB.0b013e32830cc35c Buy Metrics Abstract Multiple joint contractures, including radiohumeral synostosis, are the hallmark of Antley–Bixler syndrome (ABS). The detailed description of the skeletal aberration, however, focused in feet is scarce. We carried out the scrutiny for foot lesion in three ABS patients with POR (nicotinamide adenine dinucleotide phosphate-oxidase-cytochrome P450 oxidoreductase) gene mutations, one of whom had undergone surgical intervention for difficulty in walking. Radiographs in all three patients showed middle cuneiform-second metatarsal synostosis and the fourth brachymetapody, irrespective of the severity of their systemic manifestations. In addition, talocalcaneal synostosis, lateral cuneiform-cuboid synostosis, defects of middle phalanx, and distal phalanx-middle phalanx synostosis were found in at least two patients. In conclusion, we found distinctive constellations of foot abnormalities in the patients of ABS with POR gene mutation, which may be useful in planning the treatment strategy, as well as in the diagnostic process. © 2008 Lippincott Williams & Wilkins, Inc.