Clinical Results and Problems of Bipolar Prosthesis Replacement for Avascular Necrosis of the Femoral Head.

概要

論文の詳細を見る
Clinical results and problems encountered in bipolar endoprosthesis replacement for avascular necrosis of the femoral head were evaluated in 44 patients (57 hip joints) . Average age at the time of operation was 42 years and follow-up was for an average period of 78 months. The JOA hip score after surgery increased from 58.7 to 92.6 points. X-rays revealed migration of the outer head in 5 patients (8.8%), varus position of the outer head at the acetabulum in 7 (12.3%), varus angulation of the stem in the femoral medullar canal in 9 (15.8%), subsidence of the stem in 6 (10.5%), and a radiolucent zone in 19 (33.3%) . There was little relation, however, between clinical results and radiological findings. Complications included 3 infections, 1 dislocation, and 1 fracture of the polyethylene bearing insert.
日本関節病学会の論文