title: Hybrid total hip arthroplasty.
abstract: One hundred twenty-six primary total hip arthroplasties composed of a hybrid cemented femoral component and a cementless acetabular component were followed for a minimum of two years (mean, 42 months). The average patient age was 63 years. The most common diagnosis was osteoarthritis (85 hips), although 13 of the cases were severe or total congenital dislocations. Overall, the results were excellent. The mean Harris hip score was 93. Postoperative pain was rated as none or slight in 94% of the cases. No patient had moderate or severe pain. No femoral or acetabular components were revised. Roentgenographically no femoral component was definitely or probably loose. One acetabular reconstruction component had migrated. The authors conclude that the selective use of cemented and cementless fixation by anatomic site in this hybrid form of hip arthroplasty provided excellent results for five and one-half years.
authors.affiliation: Orthopaedic Biomechanics Laboratory, Massachusetts General Hospital, Boston 02114.
authors.forename: W H
authors.initials: WH
authors.lastname: Harris
authors.forename: W J
authors.initials: WJ
authors.lastname: Maloney
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002858:Chromium Alloys; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging; D005500:Follow-Up Studies; D006622:Hip Prosthesis / Q000009:adverse effects; D006801:Humans; D008297:Male; D008768:Methylmethacrylates; D008875:Middle Aged; D010149:Postoperative Pain; D011474:Prosthesis Design; D011859:Radiography; D014025:Titanium
chemical_list: D002858:Chromium Alloys; D008768:Methylmethacrylates; D014025:Titanium