대퇴골두 무혈성괴사에서 시행한 핵심감압술 및 압박 골이식술
core decompression and impaction bone graft in osteonecrosis of the femoral head
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목적: 대퇴골두 무혈성 괴사에서 핵심 감압술 및 압박 골이식술의 결과를 괴사부위의 크기와 위치에 따라 알아보고자 하였다. 대상 및 방법: 1996년 1월부터 2002년 9월까지 대퇴골두 무혈성괴사로 진단받고 핵심 감압술과 압박골이식술을 시행한 후 최소 2년이상 추시 가능했던 64명, 95예의 고관절을 대상으로 하였다. 남녀수는 각각 46명(71예), 18명(24예)였고, 나이는 평균 36.6(16~53)세였으며, 추시기간은 평균 43.3(24~95)개월이었다. 술 전 자기공명영상 소견상 괴사의 크기, 위치에 따른 수술 결과의 차이를 χ2 -test와 Fisher’s exact test를 이용하여 비교 분석하였다(p<0.05). 결과: 임상적 진행은 21예(22.1%)에서 발생하였으며, 그 중 괴사의 크기가 50%이상인 경우가 17예(80.9%)였고, 모든 예에서 외측에 위치하였다. 방사선학적 진행은 51예(53.7%)에서 발생하였으며, 그 중 괴사의 크기가 50%이상인 경우가 28예(54.9%), 외측에 위치한 경우가 50예(98.0%)였다. 임상적 실패는 16예(16.8%)에서 발생하였으며, 그 중괴사의 크기가 50%이상인 경우가 13예(81.3%)였고, 모든 예에서 외측에 위치하였다. 결론: 1. 괴사 부위의 크기는 클수록, 괴사 위치가 외측에 위치할수록 술 후 결과가 좋지 않았다. 2. 방사선학적 진행은 전체의 53.7%에서 발생하였으나, 인공 고관절 전치환술로 전환된 것은 16.8%에서만 발생한 것은 압박 골이식술(impaction bone graft)에 의해 대퇴골두가 강해진 것으로 생각한다.3. 보다 더 긴 추시관찰이 필요하리라 생각한다.
Abstract
Purpose: To analyse the results of a core decompression and impaction bone graft according to necrosis size and location. Materials and Methods: Between Jan. 1996 and Sep. 2002, 64 patients (95 hips) who were followed up for a minimum of 2 years were studied. Forty-six (71 hips) were male and 18 (24 hips) were female. The mean age was 36.6 (16-53) years and the average follow up was 43.3(24~95) months. The surgical results were analysed using χ2-test and Fisher’s exact test according to necrosis size and location. Results: Clinical progression was seen in 21 cases (22.1%), of which 17 cases had a lesion more than 50%. All 21 cases were located laterally. Radiologic progression was seen in 51 cases (53.7%), of which 28 cases had a lesion size involving more than 50%, and 50 cases were located laterally. Clinical failure was seen in 16 cases (16.8%), of which 13 cases had a lesion size involving more than 50%, and all 16 cases were located laterally. Conclusion: 1. The surgical results were worse when the lesion was larger and laterally positioned. 2. Radiologic progression was seen in 53.7% of cases, but conversion to total hip arthroplasty was seen in 16.8%, which was due to increased strength of femoral head. 3. To confirm these study results, longer follow up study is needed.
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