Uncemented acetabular components with polyethylene or alumina liners.
Sixty consecutive patients (60 hips) were allocated in two matched-pair groups. Patients were matched for age, gender, body mass index, level of activity, and bone stock. Both groups received an uncemented total hip arthroplasty with a modular press-fit cup and an alumina femoral head. In the first group, an acetabular liner made of polyethylene was used; in the second group, an alumina liner. Both groups were followed for a minimum of 5 years. No hip required revision, and there was no radiographic evidence of aseptic loosening in either group. Mean Harris hip score was 94.7 (87.1-99) points in the polyethylene group and 93 (88.5-100) points in the alumina group.
Schmidt
Rainer
R
Department of Orthopaedics, Friedrich-Alexander University, Erlangen-Nuremberg, Germany.
Willmann
Gerd
G
Pitto
Rocco Paolo
RP
D000077:Acetabulum; D000537:Aluminum Oxide / Q000627:therapeutic use*; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation; D001843:Bone Cements; D005260:Female; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000601:surgery; D020959:Polyethylene / Q000627:therapeutic use*
D001843:Bone Cements; D020959:Polyethylene; D000537:Aluminum Oxide