title: Ceramic-on-ceramic total hip arthroplasty.
abstract: Ceramic bearing surfaces have been introduced to prevent bone loss after osteolysis seen with conventional polyethylene bearing surfaces. One hundred three ceramic-on-ceramic total hip arthroplasties in 97 patients were retrospectively reviewed. Average follow-up was 50.4 months. Preoperative Harris Hip Score was 49.5 points, which improved to 87.2 postoperatively (P < .05). Pain score improved from 13.7 points preoperatively to 40.6 points postoperatively (P < .05). Functional score improved from 30 points preoperatively to 41 points postoperatively (P < .05). No fractures, dislocations, infections, or osteolysis was observed on radiographs. Five patients (4.9%), at 11, 16, 30, 38, and 60 months postoperatively, presented with "squeaky" hips that continue to perform well. Long-term studies will be required to determine the true efficacy of these hard bearing surfaces.
authors: Department of Orthopaedic Surgery, University of Louisville School of Medicine, Louisville, Kentucky 40202, USA.
authors: Joseph W
authors: JW
authors: Greene
authors: Arthur L
authors: AL
authors: Malkani
authors: Frank R
authors: FR
authors: Kolisek
authors: Nenette M
authors: NM
authors: Jessup
authors: Dale L
authors: DL
authors: Baker
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000537:Aluminum Oxide; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects* / Q000295:instrumentation*; D002516:Ceramics; D005260:Female; D005500:Follow-Up Studies; D006617:Hip Dislocation / Q000453:epidemiology; D006620:Hip Fractures / Q000453:epidemiology; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D010014:Osteolysis / Q000453:epidemiology; D011859:Radiography; D012086:Reoperation; D012189:Retrospective Studies; D012307:Risk Factors; D055815:Young Adult
chemical_list: D000537:Aluminum Oxide