Three-year Results with the Cementless Bicontact total Hip Arthroplasty Femoral Component

Author:

Gusso M.I.1,Piso L.1,Caddeo B.1,Capone A.1,Pintus C.1,Nicola F.1

Affiliation:

1. Orthopaedic Department, University of Cagliari, Cagliari - Italy

Abstract

Between 1990 and 1993, 65 consecutive primary total hip arthroplasties were performed using the cementless Bicontact femoral component. Of these, 56 hips in 51 patients were clinically and radiologically reviewed at an average follow-up of 35.4 months (24-53 m). The patients’ mean age was 65.9 years. There were three revision procedures (5.4%) with an average time to failure of 18.2 months. Using the Hospital for Special Surgery hip rating system, 67.9% of the hips were rated excellent, 17.9% as good, 10.7% as fair and 1.8% as poor at final evaluation. At follow-up four patients (12.5%) had mid-thigh pain and 38 hips (67.9%) were free from any observable limp. Radiolucent lines greater than 2 mm were identified in seven femora (12.5%) and stress shielding was seen in nine (16.1%). Using the fixation scale assessment of Engh the femoral component was classified as fixed by bone ingrowth or stable fibrous fixation in 87.5% of hips. Retrospective analysis of these results showed the efficacy of the Bicontact cementless stem and confirmed the importance of patient's age and femur morpho-cortical index in clinical and radiographic results with the cementless total hip.

Publisher

SAGE Publications

Subject

Orthopedics and Sports Medicine,Surgery

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