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S-ROM modular system을 이용한 고관절 재치환술

Revision Total Hip Arthroplasty with S-ROM Modular System

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목적: S-ROM modular system을 이용한 고관절 대퇴부 고관절 재치환술의 임상적 및 방사선학적 결과를 분석하고자 한다. 대상 및 방법: 무시멘트형 S-ROM modular system을 이용하여 대퇴부 재치환술을 시행한 후 2년 이상 추시가 가능하였던 23 명(24예)를 대상으로 분석하였다. 평균 추시 기간은 44개월(24~72개월)이었고, 재치환술 시 평균 연령은 48세(30~68세)였 다. 재치환술의 원인으로는 무균성 해리가 23예, 감염에 의한 해리가 1예였다. 대퇴골의 결손은 Paprosky 분류상 제 2형이 12 예, 제 3형이 8예, 제 4형이 4예였다. 임상적으로 Harris 고관절 점수, 고관절 운동 범위 및 술 후 대퇴부 동통 등을 평가하였으 며, 방사선학적으로 대퇴 스템 주위의 방사선 투과 음영, 침강, 해리, 골용해 및 재재치환 여부 등을 관찰하였다. 결과: 전 예에서 대퇴부의 방사선 투과 음영, 해리는 없었으며 대퇴 스템의 침강은 Paprosky 분류상 제 4형 3예(12.5%)에서 발 견되었으나 최종 추시 시 전 예에서 안정된 골성고정 소견을 보였다. 스템의 해리 및 골용해도 발견되지 않았으며 재재치환술을 시행한 예는 없었으며 술 후 대퇴 system 의 안정적 고정과 함께 골재형성 소견을 보였다. 합병증으로 수술 중 스템 삽입 시 대 퇴골 골절이 1예, 술 후 심부 감염이 1예에서 있었다. 결론: S-ROM modular system은 대퇴 상단부의 골 결손을 수용하여 골간단부에서 안정된 골성 고정을 얻을 수 있었고, long stem으로서 스템의 견고한 고정을 얻을 수 있는 장점이 있었다.

Abstract

Purpose: To evaluate the clinical and radiological outcomes after revision total hip arthroplasty using the S-ROM modular system. Materials and methods: Twenty-three consecutive patients (24 hips) who underwent femoral stem revision with the S-ROM modular system were followed for more than two years. The average follow-up period was 44 months (range, 24~72 months), and the average age at the time of the revision was 48 years (range, 30~68 years). Underlying causes for revisions included 23 cases of aseptic loosening and 1 case of septic loosening. Femoral bone defects according to the Paprosky system were classified as type II in 12 hips, type III in 8, and type IV in 4. The clinical and radiographic results were evaluated. Results: At the time of latest follow-up, there was no femoral stem loosening, osteolysis, radiolucency, or rerevision. Although 3 cases of Paprosky classification type IV showed subsidence, stable fibrous fixation was achieved in these hips. Complications included 1 intraoperative femoral shaft crack and 1 postoperative deep infection. Conclusion: We can achieve stable initial fixation using the S-ROM modular system with proximal press fitting sleeve and fluted stem.

참고문헌 (31)

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