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젊은 대퇴골두 무혈성 괴사 환자에서 시행한 Cementless Spotorno(CLS) 스템을 사용한 인공 고관절의 5-9년 임상 추시결과
이중명 ( Joong Myung Lee ),조덕연 ( Duck Yun Cho ),황재광 ( Jae Kwang Hwang ),이중배 ( Joong Bae Lee ) 대한고관절학회 1996 Hip and Pelvis Vol.8 No.2
A retrospective follow-up study was perfomend with clinical and radiographic results of uncemented total hip arthroplasty using CLS(Cementless Spotorno, Protek, Berne, Switzerland) in 40 patients(53 hips) with osteonecrosis of the femoral head at the department of orthopaedic surgery, National Medical Center from November 1987 to November 1991. The average age at surgery was 45.5 years (range, 30-55 years). 15 Weill threaded cup, 19 expansion cup and 19 bipolar cup were used for the acetabular components. The Average Harris hip score improved from 49 to 96 points and revealed mild thigh pain in 2 hips (3.8%) and intermittent groin pain in 3 bipolar hips(5.7%). The radiographic evaluation demonstrated that significant reactive lines showed in 8 femoral components (15%) and in 4 acetabular components( I Weill cup, 3 expansion cup), endosteal bone formation in 42 hips (79%), cortical hypertrophy in 29 hips (55%) and calcar atrophy in 29 hips (55%), and also stem subsidence more than 4 mm, in 1 hip, heterotopic ossification, in 11 hips(21%). No revision was performed for aseptic loosening, failure, or infection.
Wagner Revision Femoral Stem을 이용한 인공 고관절 재 치환술
이중명 ( Joong Myung Lee ),한용호 ( Yong Ho Hahn ),조덕연 ( Duck Yun Cho ) 대한고관절학회 1998 Hip and Pelvis Vol.10 No.1
A retrospective follow-up study was performed on 37 revision total hip arthroplasties using Wagner revision stem in 34 patients due to the loosening of arthroplasty at the department of orthopaedic surgery, National Medical Center from March 1991 to March 1996. The average age at the surgery was 53 years old (range, 34 to 47 years). The follow-up period ranged from 2 years to 8 years. The acetabular side was revised with hemispherical cup and allograft, which was not reviewed in this study. According to the AAOS method, the bone defect of the femur was classified as cavitary type in 5 hips, combined type in 29 hips and discontinuity type in 3 hips. According to the Paprosky method, the bone defect was classified as type I in 5 hips, type IIA in 7 hips, type IIB in 8 hips and type III in 17 hips. The fresh-frozen femoral head allograft was used for filling the gap between proximal stem and cortex in recently operated 14 hips. Within this period, the loosening or failure developed in one case, but postoperative infection did not occur. Subsidence developed in three cases by less than 5 mm. The stress shielding was minimal(grade I or II according to Engh s criteria). Until the latest follow-up time, the results of this technique were excellent. We will continuously follow up these patients for the exact evaluation.