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무시멘트 비구컵의 나사못 고정을 첨가한 압박 고정에대한 임상 연구
한창동 ( Chang Dong Han ),김용찬 ( Yong Chan Kim ) 대한고관절학회 1996 Hip and Pelvis Vol.8 No.1
The results of one hundred consecutive primary total hip arthroplasties in eighty-one patients in which a Harris-Galante porous coated acetabular component had been used were reviewed. This study shows a clinical and radiological analysis of the fiber-mesh coated acetabular components with a minimum 5 year follow-up. In all patients the Harris-Galante acetabular component had been pressfit, which was 1-2mm under-reaming technique into the innominate bone with 2-4 screws augmentation. The average age was 48 years(range 24-82 years). The mean preoperative Harris Hip Score was 56.2(range 24.2-79.0) and the postoperative Harris Hip Score 94.2(range 60.1-100). There were no revisions for loosening or migration of the acetabular components. On the radiological assessment there was no loosening and migration of acetabular component and there was no fiber mesh disruption and osteolysis. There was no complication related with screws. The initial gaps between acetabular cup and the acetabular bone were seen on the immediate postoperative radiographs at zone II in 12 cups. The peripheral gap was not observed on immediate post-operative radiographs. But the gaps were resolved during 6-12 months postoperatively. The radiolucent lines were noted in 52 cups. These radiolucent lines were below 0.5mm in thickness and most frequently located in zone III(35%), less frequently zone I(26%). But there were no continuous radiolucent lines over 2mm. Most continous radiolucent lines were stabilized at 2-3 years after operation. A longer follow-up period is needed for fates of these thin radiolucent lines. We conculded that the fiber-mesh coated hemispherical cementless components were performing well with minimum 5-year-follow-up. Our data suggests that press-fit, 1-2mm under-reaming technique with screw augmentation is safe and efficacious for acetabular component fixation in primary total hip arthroplasty when anatomy and bone stock permit.