title: Straight tapered titanium stem with alumina bearing in cementless primary total hip arthroplasty: a minimum 5-year follow-up.
abstract: The aim of this study was to assess the midterm results of primary cementless total hip arthroplasty using a tapered stem and alumina bearing couple in active patients. After a minimum of 5 years of follow-up, 78 arthroplasties in 72 patients were reviewed retrospectively. The mean Harris hip score was 94 points, and 2 hips had thigh pain. All components radiographically demonstrated stable fixation by bone ingrowth and mild stress shielding of the proximal femur were noted in 14% of hips. There was no significant osteolysis or aseptic loosening. There was a ceramic head fracture in 1 hip and audible sounds in 2 hips. The results of total hip arthroplasty with a straight, tapered, proximally porous-coated stem and alumina-on-alumina bearing were encouraging for active patients.
authors.affiliation: Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Bo-Hyun
authors.initials: BH
authors.lastname: Hwang
authors.forename: Woo-Suk
authors.initials: WS
authors.lastname: Lee
authors.forename: Kwan-Kyu
authors.initials: KK
authors.lastname: Park
authors.forename: Ick-Hwan
authors.initials: IH
authors.lastname: Yang
authors.forename: Chang-Dong
authors.initials: CD
authors.lastname: Han
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000537:Aluminum Oxide; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation* / Q000379:methods; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery*; D005500:Follow-Up Studies; D006618:Hip Dislocation, Congenital / Q000601:surgery; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000502:physiology / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D010020:Osteonecrosis / Q000601:surgery*; D011474:Prosthesis Design; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D012189:Retrospective Studies; D014025:Titanium; D016896:Treatment Outcome
chemical_list: D014025:Titanium; D000537:Aluminum Oxide