슬관절 전치환술에서 자동 항법 장치와 고식적인 수술법에 따른 삽입물의 방사선 계측치에 대한 비교 분석

Purpose: To compare radiologic measurements of femoral and tibial component position in the total knee replacement (TKR) using computer-assisted surgery (CAS) with those of conventional TKR. Materials and Methods: Two groups of 40 TKRs each were operated on using a CT-free navigation system or the conventional technique. Patients in both groups were matched according to age, gender, diagnosis, prosthesis and PCL retaining or substitution. We measured femoral component frontal ( angle) and sagittal angle ( angle), tibial component frontal ( angle) and sagittal angle ( angle). We also studied whether femoral notch was present or not. Results: There were no significant differences in angle, angle, angle and femoral notch between CAS and conventional TKR (p>0.05). The mean angle in the group of TKRs using CAS was 0.28±1.96°, and in the group of conventional TKRs was 2.39±2.73° (p<0.0001). This difference was statistically significance. Conclusion: Our study has shown that there were no significant differences in alpha, beta, delta angle and incidence of femoral notching between CAS TKR and conventional TKR. Gamma angle was different statistically between CAS TKR and conventional TKR. The CAS afforded to precisely place femoral component in sagittal plan than conventional method.