세라믹-세라믹 관절면 Summitဂ system을 이용한 무시멘트인공 고관절 전치환술의 3년 추시 결과
Cementless Total Hip Arthroplasty using Ceramic-on-ceramic Summitဂ System: 3 years follow up
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목적: 세라믹-세라믹 관절면의 Summitဂ system을 이용한 무시멘트 인공 고관절 전치환술 후 3년 추시 결과를 후향적 으로 평가 하였다. 대상 및 방법: 2001년 1월부터 2002년 12월까지 Summitဂ system으로 고관절 전치환술을 시행 받고 3년 이상 추시가 가능하였던 31명 31례를 대상으로 하였다. 평균 추시기간은 3.3년이었으며, 퇴행성 고관절염 18례, 대퇴골두 무혈성괴 사 10례, 대퇴경부골절 3례였다. 임상적 결과는 Harris 고관절 점수를 이용하여 평가하였고, 방사선학적 결과는 삽입물 의 안정성, 골용해 발생, 관절면 마모 등을 관찰하여 평가하였다. 평균연령은 67.4세였다. 결과: 수술 전 평균 Harris 고관절 점수는 64.7점, 수술 후 90.4점이었다. 합병증으로는 2례의 후방 탈구가 있었으며, 3 례에서 일년 이상 지속된 파행이 관찰되었다. 방사선 추시 관찰시 전례에서 골침습성 고정을 얻어 비구컵의 이동이나 골반 내 돌출, 골용해 소견은 관찰되지 않았다. 대퇴스템은 역시 모든 례에서 추시 기간 중 내반 위치로의 변형이나 원위부로의 침식, 삽입물의 이완은 관찰되지 않았다. 최종 추시 당시 운동 범위는 평균 굴곡 120.7도(110~150), 신전 5도(0~10), 내회전 20.3도(15~25), 외회전 33.7도(20~40), 외전 29.4도(20~40), 내전 19,5도(15~25)로 양호하였다. 결론: Summitဂ system을 이용한 인공 고관절 치환술의 3년 추시 결과, 운동범위와 기능에서 매우 양호한 결과를 보였다.
Abstract
Purpose: To prospectively evaluate the 3 years follow up clinical and radiographic results of uncemented total hip arthroplasty using the Summitဂ system with ceramic-on-ceramic articulation. Materials and Methods: From January 2001 to December 2001, thirty-one primary total hip arthroplasties were performed on thirty-one patients using the Summitဂ system. The mean follow-up period was 3.3 years. The preoperative diagnoses were degenerative osteoarthritis in 18 cases, avascular necrosis in 10 cases, and a femoral neck fracture in 3 cases. The mean age at surgery was 67.4 years. The clinical results were evaluated using the Harris hip score. The radiographic evaluation was performed to determine the stability of the components, the prevalence of osteolysis and the amount of wear. Results: The mean Harris hip score improved from 64.7 points preoperatively to 90.4 points at the most recent follow-up. The complications included two cases of dislocation, three cases of limping gait lasting for 1 year after surgery. Fixation by bone ingrowth was noted in all cases and there was no case of migration of the acetabular cup and osteolysis. There was no case in the varus position, sinking down, or a loosening of the femoral stem. On the final observation after surgery, the range of hip joint motion showed flexion of 120.7ခon average (110ခ~150ခ), extension of 5ခ(0ခ~10ခ), internal rotation of 20.3ခ(15ခ~25ခ), external rotation of 33.7ခ(20ခ~40ခ), abduction of 29.4ခ(20ခ~40ခ), and adduction of 19.5ခ(15ခ~25ခ). Conclusion: Uncemented total hip arthroplasty using the Summitဂ system with ceramic-on-ceramic articulation showed excellent clinical and radiographic results in the range of motion and function.
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