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Total hip arthroplasty (THA) with well designed cementless acetabular implants has shown excellent results. The purpose of this study was to assess our clinical and radiological outcomes using an uncemented cup. We conducted a prospective cohort study including all consecutive primary THAs performed with the Morscher press-fit cup, an uncemented non-modular acetabular component, between March 1996 and December 1998. Patients were evaluated at ten years with clinical and radiological follow-up, patient satisfaction and questionnaire assessment using the Harris hip score (HHS), Merle d'Aubigné and Postel score, the UCLA score, the 12-item short-form health survey (SF-12) and a visual analog scale. Five hundred sixty-one THAs were performed in 518 patients. At 120 months (± 7.3 months), 303 patients with 335 THAs were still available for follow-up. None of the patients had required cup revision for aseptic loosening. At ten years, the cup survivorship was 98.8% (95% CI 97.4-99.5) with cup revision for any cause as an endpoint. No radiolucencies were seen around the cups, but osteolytic defects involved 21 stems (8.3%). Mean total linear polyethylene wear was 0.9 mm. The Morscher acetabular replacement cup provides excellent results at ten years. There were no revisions for aseptic loosening of the cup, and no osteolytic defects were found around the cup. Patient satisfaction was high and the clinical results were very good.

Original publication

DOI

10.1007/s00264-010-1059-8

Type

Journal article

Journal

International orthopaedics

Publication Date

07/2011

Volume

35

Pages

957 - 963

Addresses

Division of Orthopaedics and Trauma Surgery, Geneva University Hospitals, 4, rue Gabrielle-Perret-Gentil, 1211, Geneva 14, Switzerland.

Keywords

Acetabulum, Hip Joint, Humans, Osteolysis, Postoperative Complications, Treatment Outcome, Arthroplasty, Replacement, Hip, Cementation, Follow-Up Studies, Prospective Studies, Prosthesis Design, Hip Prosthesis, Health Status, Adult, Aged, Aged, 80 and over, Middle Aged, Patient Satisfaction, Female, Male, Young Adult, Kaplan-Meier Estimate