COREN Hip System을 이용한 무시멘트 고관절 전치환술의 최소 7년 추시 결과
Minimum Seven-year Follow-up of Cementless Total Hip Arthroplasty with the COREN Hip System
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목적: 예전에 보고하였던 국내 최초로 개발된 인공 고관절인 COREN hip system (COREN,Corentec, Seoul, Korea)을 이용한 무시멘트 고관절 전치환술의 추시 결과를 연장하여 보고하고자한다. 대상 및 방법: 2003년 7월부터 2004년 3월까지 COREN hip system을 이용한 무시멘트 고관절 전치환술을 시행받았고 7년 이상의 추시가 가능하였던 52명(63예)을 대상으로 임상적, 방사선학적 분석을 시행하였다. 결과: Harris 고관절 점수는 수술 전 평균 48.1점에서 수술 후 마지막 추시 96.4점으로 향상되었고,WOMAC 점수는 수술 전 평균 54.7점에서 수술 후 마지막 추시 22.1점으로 향상되었다. 모든 고관절에서 술 후 안정된 골성 고정 소견을 보였으며, 골용해나 삽입물의 해리를 보인 예는 없었다. 추시 기간 중 재치환술이 필요한 예는 없었으며, 한 예에서 술 후 4.7년에 치환물 주위 골절로 재수술을 시행하였다. 결론: COREN hip System을 이용한 무시멘트 고관절 전치환술의 7년 이상 추시에서 만족할만한 임상적, 방사선학적 결과를 얻을 수 있었다.
Abstract
Purpose: We previously reported results of a mean 3.2-year follow-up of the COREN hip system, which is the first total hip prosthesis developed in Korea. The aim of this prospective study was to update the previous report with regard to the hip function and radiographic implant performance. Materials and Methods: Between 2003 and 2004, a consecutive series of 68 primary, cementless, total hip prostheses (COREN) were implanted in 57 patients(68 hips) and followed up for a minimum of 7 years. Sixtythree of the 68 hips were available for clinical scoring and radiographic analysis. Results: The mean Harris hip and WOMAC scores were improved from 48.1 and 54.7, preoperatively, to 96.4and 22.1 at the final follow-up. The mean patient activity increased from 3.1, preoperatively, to 8.2 at the final follow-up. All hips showed stable bony ingrowth on the radiographs. No hips showed evidence of osteolysis or prosthesis loosening, and no revision was required during the follow-up. A Periprosthetic fracture (Vancouver type B1) was encountered in one hip 4.7 years after surgery, which was treated by reoperation. Conclusion: This study shows that the COREN hip system produces excellent mid-term results in cementless hip arthroplasty.
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