title: Five-year results of metal-on-metal resurfacing arthroplasty in Asian patients.
abstract: Clinical results of 50 metal-on-metal resurfacing arthroplasties in 45 Japanese patients were evaluated to a minimum follow-up of 5 years. The predominant diagnosis was developmental dysplasia or dislocation of the hip (70%). One patient died of an unrelated cause and another was lost to follow-up. Two hips received revision surgery, including 1 femoral neck fracture and 1 septic loosening. In the remaining 46 hips, 1 hip showed femoral component loosening. Clinical scores of the 46 hips were satisfactory at the final follow-up. The survival rate at 5 years was 96% when failure was attributed to revision for any reason. Metal-on-metal resurfacing arthroplasty in Japanese patients, who have a different distribution of hip diseases from European and American patients, showed similarly promising early clinical results.
authors.affiliation: Department of Orthopaedic Surgery, Osaka University Medical School E3, Suita, Osaka, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Nishii
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Sugano
authors.forename: Hidenobu
authors.initials: H
authors.lastname: Miki
authors.forename: Masaki
authors.initials: M
authors.lastname: Takao
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Koyama
authors.forename: Hideki
authors.initials: H
authors.lastname: Yoshikawa
mesh_terms: D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D002857:Chromium; D003035:Cobalt; D017886:Durapatite; D005260:Female; D006617:Hip Dislocation / Q000601:surgery; D006618:Hip Dislocation, Congenital / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D012086:Reoperation; D018709:Statistics, Nonparametric; D013499:Surface Properties; D015996:Survival Rate; D016896:Treatment Outcome
chemical_list: D002857:Chromium; D003035:Cobalt; D017886:Durapatite