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( Taek Rim Yoon ),( Hyung Nam Kim ),( Kyung Soon Park ) 대한고관절학회 2012 Hip and Pelvis Vol.24 No.2
Ceramic-on-polyethylene components have better wear characteristics than metal-on-polyethylene components in total hip arthroplasty (THA), and thus, extensive wear resulting in penetration of the femoral head through the acetabular cup is rare after ceramic-on-polyethylene THA. However, several reports have been issued regarding catastrophic polyethylene failure in ceramic-on-polyethylene systems. Here, the authors report the first case of bilateral complete polyethylene wear failure with acetabular cup perforation after ceramic-on-polyethylene THA.
대퇴골두 무혈성 괴사증치료에 사용한 양극성 고관절 반치환술
윤택림 ( Taek Rim Yoon ),노성만 ( Sung Man Rowe ),정성택 ( Sung Taek Jung ),홍대연 ( Dae Yeon Hong ) 대한고관절학회 1995 Hip and Pelvis Vol.7 No.1
Bipolar hip arthroplasty has been used in an effort to decrease the acetabular erosion which is certain to develop after femoral head replacement. There is some contmversy concerning the bipolar hip arthroplasty performed in osteonecrosis of femoral head. Analysis was performed on the thirty-nine hips of thirty-seven patients to evaluate the clinical and radiological results of bipolar hip arthroplasty. They were followed at least 2 years after operation with an average of 2 years and 2 months. Clinically, the Harris Hip Score improved from 47 to 93 points at the final follow-up. There were no significant complications. Radiologically, there was about 8 percent acetabular cartilage erosion. There was no case of acetabular bony erosion. The motion at both bearings was well maintained with more motion at the outer bearing. The average range of motion was 46 degrees with an average of 26 degrees at the outer bearing and 20 degrees at the inner bearing. Even though the short term results were satisfactory, long term studies will be necessary, especially to determine the extent of the acetabular bony erosion.