불안전 대퇴골 전자간 골절 치료에서 IMHS와 압박고 나사의 비교
Comparison of IMHS and Compression Hip Screw in Treatment of Unstable Intertrochanteric Fracture of the Femur
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불안정 대퇴골 전자간 골절에 대하여 IMHS (Intramedullary hip screw, Smith and Nephew Inc., Memphis, USA)와 압박 고 나사를 이용한 임상적 치료결과를 비교 분석하고자 하였다. 대상 및 방법: 1998년 2월부터 2002년 2월까지 수술적 치료를 시행받은 불안정 전자간 골절 55례를 대상으로 후향적 조사를 시행하였다. 55례중 35례는 IMHS를, 20례는 압박 고 나사를 시술하였다. 결과는임상 기록 및 방사선 사진을 이용하여, 체중부하 시기, 지연 나사의 활강 정도, 대퇴 경간 각도의 변화, 골유합 기간과 합병증 등을 비교하였다. 결과: 전 체중 부하 시기는 IMHS를 사용한 군에서는 술 후 평균 1.3주, 압박 고 나사를 사용한 군에서는 술 후 평균 5.6주였다. 지연 나사 활강은 각각 2.7 mm, 5.6 mm였고, 대퇴 경간 각도 변화는 각각3.5˚와 6.5˚였다. 골유합 기간은 IMHS를 사용한 군에서는 평균 15.3주, 압박 고 나사를 사용한 군에서는 평균 16.1주가 소요되었다. 결론: 불안정 전자간 골절 치료에서, IMHS로 시술한 경우에 조기 전 체중 부하가 가능하고, 지연나사활강정도나 대퇴 경간 각도 변화가 적은 것 등을 감안하면, 압박 고 나사보다 조금 더 신뢰할 수 있는 고정 방법 중의 하나인 것으로 사료된다.
Abstract
The clinical results of IMHS (Intramedullary hip screw, Smith and Nephew Inc., Memphis, USA) and compression hip screw were compared and analyzed in the treatment of unstable intertrochanteric femoral fractures. Materials and Methods: Fifty-five patients of unstable intertrochanteric fracture between February 1998 and February 2002 were reviewed by retrospective study. Thirty-five patients were treated with IMHS and 20 with a compression hip screw. The results were evaluated according to the time of weight bearing ambulation, the amount of sliding of the lag screw, the change in the neckshaft angle, the bone union time and postoperative complications. Results: The mean time of full weight bearing ambulation was 1.3 weeks after surgery in the IMHS group (group 1) and 5.6 weeks in the compression hip screw group (group 2). The lag screw slid an average 2.7 mm in group 1 and 5.6mm in group 2. The mean change in the neck-shaft angle was a 3.5°decrease in group 1 and a 6.5°decrease in group 2. Bony union was obtained in an average of 15.3 weeks in group 1 and 16.1 weeks in group 2. Conclusion: IMHS was associated with earlier full weight bearing ambulation, less sliding of the lag screw, and less change of the neck-shaft angle in the treatment of unstable intertrochanteric femoral fracture, as compared with the compression hip screw. Therefore, IMHS is a slightly more reliable choice than compression hip screw for treating an unstable intertrochanteric femoral fracture.
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