전자기장 네비게이션을 이용한 슬관절 전치환술의 8-10년 추시 결과

국문 초록 (Abstract)

목적: 전자기장 네비게이션 시스템을 이용한 슬관절 전치환술과 고식적 방식을 이용한 전치환술 후 8-10년간 추시 가능하였던 환자들에서 임상적 및 방사선적 결과를 비교 분석하고자 하였다.
대상 및 방법: 2004년 2월부터 2006년 12월까지 슬관절 전치환술을 시행 받은 후 8-10년 이상 추시가 가능하였던 환자 32명 40예 슬관절을 대상으로 각각 네비게이션군, 고식적 군으로 나누어 술 전 및 최종 추시 시의 관절 가동 각도, 슬관절 점수 및 기능 점수를 측정하였고 비교 대조하여 분석하였다. 또한 같은 시기의 대퇴골 치환물의 외반각(α), 굴곡각(γ) 및 경골 치환물의 내반각(β), 후방 경사각(δ)을 측정하여 삽입물의 정렬을 비교하였다.
결과: 네비게이션군에서 평균 운동 범위는 최종 추시 시 121.8°±16.3° (92°-140°)로 호전되었고, Western Ontario McMaster Universities osteoarthritis Index (WOMAC) score는 89.8±5.4점으로, Knee Society score (KSS)는 91.5±7.5점으로 각각 향상되었다. 고식적 군에서 평균 운동 범위는 최종 추시 시 112.6°±25.6° (60°-140°)로 측정되었다. WOMAC score는 84.2±10.6점, KSS는 81.1±14.3점으로 각각 향상되었다. 삽입물의 외반각(α), 내반각(β), 굴곡각(γ), 후방 경사각(δ)은 두 군 모두에서 수술 직후에 비하여 최종 추시 시까지 유의한 변화를 보이지 않았다. 두 군의 비교에 있어서는 평균 운동 범위(p=0.018)와 KSS (p=0.038)만이 네비게이션군에서 고식적 군에 비하여 통계적으로 유의하게 좋은 결과를 보였다.
결론: 네비게이션을 이용한 슬관절 전치환술을 시행한 군에서 8-10년 추시결과 관절 운동 범위와 KSS가 고식적 군에 비해 유의하게 높았다. 그러나 술 전 및 술 후 대비 최종 추시 시 지표들의 변화량은 KSS를 제외하고는 고식적 군과 유의 차한이를 보이지 않았다.

다국어 초록 (Multilingual Abstract)

Purpose: The purpose of this study was to compare the clinical and radiological results between patients who underwent total knee arthroplasty using the conventional method and the navigation-assisted method.
Materials and Methods: A retrospective review of was performed on 32 patients (40 knees) who underwent total knee arthroplasty between February 2004 and December 2006 and were followed-up for 8 to 10 years. Mechanical axis deviation, range of motion, radiologic position of the implants, and subjective clinical scores were measured and compared between 20 navigation-assisted total knee arthroplasties and 20 conventional total knee arthoplasties. Change in the values (α, β, γ, and δ angles) from the immediate postoperative period to the last follow-up were also calculated and compared between the two groups.
Results: The mean range of motion in the navigation group was improved to 121.8°±16.3° (92°–140°) at the last follow-up, and the Western Ontario McMaster Universities osteoarthritis Index (WOMAC) score was 89.8±5.4 and the Knee Society score (KSS) was 91.5±7.5. The mean range of motion in the conventional group was 112.6°±25.6° (60°–140°) at the last follow-up. The WOMAC score was 84.2±10.6, and the KSS was 81.1±14.3. The α, β, γ, and δ angles of the implants were not significantly changed until the last follow-up. In the comparison between the two groups, only the mean range of motion (p=0.018) and the KSS (p=0.038) showed statistically better results in the navigation group than the conventional group.
Conclusion: Navigation-assisted total knee arthroplasty showed better KSS and range of motion compared with the conventional group in a cross-sectional study with 8 to 10 years of follow-up results. However, only the KSS showed a significant difference between the two groups by the amount of changes in the clinical and radiological results.

목차 (Table of Contents)

• 서론
• 대상 및 방법
• 결과
• 고찰
• 결론
• REFERENCES

참고문헌 (Reference)

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