골다공증을 동반한 고령의 대퇴 전자 주위 골절에서 항회전 근위 대퇴 골수정(PFNA)의 치료 결과
Results of Treating Senile Osteoporotic Peritrochanteric Fracture with Proximal Femoral Nail Antirotation (PFNA)
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초록
목적: 골다공증을 동반한 고령의 대퇴 전자 주위 골절 환자의 치료에 있어서 항회전 근위 대퇴 골 수정(Proximal Femoral Nail Antirotation, PFNA)의 치료 결과를 알아보고자 하였다. 대상 및 방법: 2006년 11월부터 2007년 12월까지 PFNA를 이용하여 치료한 65세 이상의 대퇴 전자 주위 골절 환자 중 6개월 이상 추시 관찰이 가능하였던 21예를 대상으로 하였다. 추시 기간 은 평균 12.9개월이었으며 연령은 평균 74.5세였다. 결과: 수술 시간은 평균 48.8분이었으며 술후 평균 7.9일에 보행기를 이용한 보행이 가능하였고 80.9%에서 수상 전 보행 상태를 회복할 수 있었다. 평균 T-score는 -3.3 이었다. 18예에서 만 족할 만한 골절 정복을 얻을 수 있었으며 평균 17.4주에 골유합을 얻을 수 있었다. Blade의 평균 활강은 4 mm였으며 대퇴 경간각은 평균 1.3도 내반 전위를 보였다. 1예에서 폐부종이 발생하였 으며 1예에서 불유합 및 PFNA blade의 골두 천공이 발생하였다. 결론: 골다공증을 동반한 대퇴 전자 주위 골절에 있어서 항회전 근위 대퇴골수정을 이용한 수술 법은 수술 시간이 짧고 술후 환자의 보행 능력이 양호하였으며 합병증도 적어 유용한 치료 방법의 하나라고 사료된다.
Abstract
Purpose: The purpose of this study was to evaluate the results of treating senile osteoporotic peritrochanteric fracture with proximal femoral nail antirotation (PFNA). Materials and Methods: Between November 2006 and December 2007, 21 patients older than 65 years of age with intertrochanteric and subtrochanteric fractures were treated with PFNA. The mean duration of follow-up was 12.9 months and the mean age was 74.5 years. Results: The mean operation time was 48.8 minutes (range: 25-90 minutes). The time to ambulation averaged 7.9 days. Eighty point nine percent (17 cases) of the patients returned to their previous walking status at 6 months after operation. The average T-score was -3.3. Eighteen cases (85.7%) achieved acceptable reduction and the mean time to radiologic bony union was 17.4 weeks. The average amount of PFNA blade sliding was 4 mm and the neck-shaft angle was changed to 1.3 degrees varus displacement at the final follow-up. The complications included pulmonary edema in 1 case and protrusion of the PFNA blade into the hip joint in 1 case. Conclusion: Because of the reduced operation time, favorable walking ability and low rate of complications, PFNA is an acceptable alternative for fixation of senile osteoporotic peritrochanteric fracture.
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