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파쇄 동종골 감입 이식과 비구 보강환을 이용한 비구부 결손의 재건

reconstruction of acetabular deficiencies using morselized allograft impaction and acetabular reinforcement rings

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목적: 비구부 결손에 대하여 파쇄 동종골 감입 이식법과 비구 보강환을 이용하여 재건한 결과를 분석하고자 하였다. 대상 및 방법: 1990년 3월부터 2000년 12월까지 상기 방법으로 시술한 73예(63명)를 대상으로 하였다. 수술 당시 평균 연령은 53.2세였으며, 평균 추시 기간은 7.6년이었다. 비구부 결손 정도는 AAOS 기준에 따라 분류하였으며, 임상결과는 Harris 고관절 점수로 판정하였다. 방사선 소견 상 보강환 고정나사나 고리의 파손이 있거나, 5 mm 이상의 수평 또는 수직 이동 그리고 5도를 초과하는 비구 경사각의 변화가 있는 경우에 방사선학적 실패로 판정하였다. 결과: 비구부 결손의 정도는 AAOS 분류 제 3형이 61예, 그리고 제 4형이 12예였다. Harris 고관절 점수는 시술 전 평균 43점에서 술 후 87점으로 향상되었다. 20예에서 중등도 이상의 서혜부 동통 및 파행 소견을 보였다. 방사선학적판정 기준 상 총 생존율은 78.1%였다. 합병증으로는 심부 감염 6예, 혈관 손상 2예, 그리고 탈구가 4예 있었다. 결론: 금속 보강환을 이용한 동종골 감입 이식법은 심한 비구부 결손의 재건에 유용한 방법이지만 그 술식이 매우 위험하고 까다롭기 때문에 세심한 주의가 필수적이라 생각된다.

Abstract

Purpose: This study was undertaken to evaluate the effectiveness of morselized allograft impaction combined with acetabular reinforcement ring (ARR) for acetabular deficiencies. Materials and Methods: From March 1990 to December 2000, 73 hips (63 patients) were reconstructed by the above method. Mean subject age was 53.2 years and mean follow-up duration was 7.6 years. Acetabular deficiencies were classified by AAOS system. Clinical result was graded according to Harris hip scoring system (HHS).Radiographic failure was defined as a breakage of the screw and/or hook, a migration of 5 mm or more in either the vertical or horizontal direction and changes in the acetabular angulation over 5 degrees. Results: Acetabular deficiency was AAOS-type 3 in 61 hips and type 4 in 12. HHS was improved from 43 to 87 points. Moderate limping gait with groin pain was noted in 20 hips (27.4%). Overall radiographic survival rate was 78.1%. Complications were 6 infections (8.2%), 2 vascular injuries (2.7%), and 4 dislocations (5.5%). Conclusion: In the case of severe acetabular bone loss, revision surgery with metallic supporter combined with impaction graft is a useful method, but successful outcome is difficult to achieve. Careful attention throughout the procedure is mandatory.

참고문헌 (39)

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