TOTAL HIP ARTHROPLASTY WITH BIOMEC PROSTHESIS: 20-YEAR FOLLOW-UP

ABSTRACTObjective: To analyze the clinical and radiological outcomes from total hip arthroplasty using the Biomec prosthesis over a 20-year period (1988 to 2009). Methods: The patients were evaluated clinically in accordance with the Merle d'Aubigné and Postel functional classification, and underwent anteroposterior (AP) radiography of the pelvis and the operated joint in lateral view. The variables evaluated were acetabular and femoral osteolysis, polyethylene wear, nail migration, follow-up and clinical outcomes. Results: The mean follow-up was 10.6 years (range 4 to 21 years). The sample consisted of 84 patients (32 men and 52 women) and the mean preoperative age was 47 years. We found that 88% of the results from the clinical evaluation were good or excellent. In relation to the radiological findings, 92.5% of the results were good. The mean wear on the polyethylene was 1.4 mm. Conclusion: The use of the Biomec prosthesis in this cohort showed good clinical and radiographic results.