Results of Cemented Femur Components Application at Total Hip Revision Arthroplasty
Treatment results for 114 total hip revision arthroplasties (1992—2011) with cemented femur components were analyzed. The most common indication for surgery was aseptic instability of hip implant. In 1 st group (42 operations) cemented stems Bi-Metric (Biomet Orthopaedics) and in 2 nd group (72 operations) cemented stems ESI (Endoservis) were used. Surgical technique was described and causes of complication development were analyzed. Mean follow-up made up 11 years. In the 1 st group excellent results were achieved in 2 (4.76%) cases, good in 34 (80.95%), satisfactory in 3 (7.14%) and poor in 3 (7.14%) cases. In the 2 nd group corresponding results were achieved in 3 (4.17%), 47 (65.28%), 15 (20.83%) and 7(9.72) respectively. Analysis of the reasons for complication development was performed. It was stated that femur defects of type 3 on level 1 by AAOS classification resulted in fatigue fractures of cemented revision stems.