title: Isolated talonavicular arthrodesis for Müller-Weiss disease.
abstract: This study aims to describe the clinical results of isolated talonavicular arthrodesis in rare Müller-Weiss disease, spontaneous osteonecrosis of the navicular in adults. From June 2001 to April 2010, we performed isolated talonavicular arthrodesis on 13 feet of 13 patients (mean age: 55.6 years) with Müller-Weiss disease. The feet were staged by the preoperative radiographs according to the Maceira classification. The average modified American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score improved from 48.5 points preoperatively to 87.2 points at final follow-up (mean 51 months, range 10-114 months). Union was achieved in 10 cases (76.9%). If the subtalar and calcaneocuboid joints are relatively healthy, isolated talonavicular arthrodesis may be an effective and reliable surgical option for treatment of Müller-Weiss disease that is resistant to conservative treatment.
authors.affiliation: Department of Orthopedic Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
authors.forename: Chun-Kuan
authors.initials: CK
authors.lastname: Lu
authors.affiliation: Department of Orthopedic Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Orthopedic, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
authors.forename: Yin-Chih
authors.initials: YC
authors.lastname: Fu
authors.affiliation: Ping-Tung Hospital, Executive Yuan, Pingtung, Taiwan.
authors.forename: Yuh-Min
authors.initials: YM
authors.lastname: Cheng
authors.affiliation: Department of Orthopedic Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Orthopedic, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. Electronic address: roger01@ms4.hinet.net.
authors.forename: Peng-Ju
authors.initials: PJ
authors.lastname: Huang
mesh_terms: D000328:Adult; D000368:Aged; D000843:Ankle Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D001174:Arthrodesis; D001863:Bone Screws; D005260:Female; D005530:Foot Deformities / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care; D011300:Preoperative Care; D011859:Radiography
keywords: Müller-Weiss disease; Talonavicular arthrodesis