PDF(Pubmed)
Abstract：
UNASSIGNED: Computer-assisted surgery (CAS) during primary total knee arthroplasty (TKA) prosthesis alignment. However, literature on its use during revision TKA (rTKA) is scarce. Moreover, the effect of CAS during rTKA on rotational alignment of the prosthesis has not been described yet. The purpose of this study was to assess the effect of CAS during rTKA, focusing on the number of outliers and coronal, sagittal and rotational prosthetic alignment compared to conventional rTKA.
UNASSIGNED: A prospective cohort study comparing CAS-rTKA with a historical control group (CON-rTKA). The CAS-rTKA group (54 patients/62 knees) underwent rTKA using imageless CAS between 2012 and 2017. The CON-rTKA group (13 patients/23 knees) was operated using the conventional technique between 2002 and 2012. Postoperative alignment was measured using the EOS-2D/3D system (coronal and sagittal planes) and computed tomography scan (rotation).
UNASSIGNED: No significant differences between the CAS-rTKA and CON-rTKA groups were found for coronal and sagittal alignment regarding the mechanical angle of the leg (p = 0.08), mechanical lateral distal femoral angle (p = 0.87), mechanical medial proximal tibial angle (p = 0.40), anatomical proximal posterior tibial angle (p = 0.43) nor femoral (p = 0.80) and tibial rotation (p = 0.15). For the proportions of coronal, sagittal and rotational outliers, no significant differences were found either.
UNASSIGNED: This study showed no evidence that use of CAS during rTKA leads to improved coronal, sagittal or rotational alignment of knee prostheses or a difference of outliers between the groups.
UNASSIGNED: Level III, therapeutic.
UNASSIGNED: A prospective cohort study comparing CAS-rTKA with a historical control group (CON-rTKA). The CAS-rTKA group (54 patients/62 knees) underwent rTKA using imageless CAS between 2012 and 2017. The CON-rTKA group (13 patients/23 knees) was operated using the conventional technique between 2002 and 2012. Postoperative alignment was measured using the EOS-2D/3D system (coronal and sagittal planes) and computed tomography scan (rotation).
UNASSIGNED: No significant differences between the CAS-rTKA and CON-rTKA groups were found for coronal and sagittal alignment regarding the mechanical angle of the leg (p = 0.08), mechanical lateral distal femoral angle (p = 0.87), mechanical medial proximal tibial angle (p = 0.40), anatomical proximal posterior tibial angle (p = 0.43) nor femoral (p = 0.80) and tibial rotation (p = 0.15). For the proportions of coronal, sagittal and rotational outliers, no significant differences were found either.
UNASSIGNED: This study showed no evidence that use of CAS during rTKA leads to improved coronal, sagittal or rotational alignment of knee prostheses or a difference of outliers between the groups.
UNASSIGNED: Level III, therapeutic.
摘要：
■初次全膝关节置换术（TKA）假体对准期间的计算机辅助手术（CAS）。然而,关于其在修订TKA(rTKA)期间使用的文献很少。此外，rTKA期间CAS对假体旋转对齐的影响尚未描述。这项研究的目的是评估CAS在rTKA期间的效果，关注离群点和冠状点的数量，与传统rTKA相比，矢状和旋转假体对齐。
■一项前瞻性队列研究，比较CAS-rTKA与历史对照组（CON-rTKA）。CAS-rTKA组（54名患者/62膝）在2012年至2017年期间使用无图像CAS进行rTKA。CON-rTKA组（13名患者/23膝）在2002年至2012年间使用常规技术进行手术。使用EOS-2D/3D系统（冠状和矢状平面）和计算机断层扫描（旋转）测量术后对准。
■CAS-rTKA和CON-rTKA组的冠状和矢状排列在腿的机械角度方面没有发现显着差异（p=0.08），机械外侧股骨远端角度（p=0.87），胫骨近端机械内侧角（p=0.40），解剖学近端胫骨后角（p=0.43）或股骨（p=0.80）和胫骨旋转（p=0.15）。对于日冕的比例，矢状和旋转异常值,也没有发现显著差异.
■这项研究没有证据表明在rTKA期间使用CAS会导致冠状，膝关节假体的矢状或旋转对齐或组间异常值的差异。
■三级,治疗。
■一项前瞻性队列研究，比较CAS-rTKA与历史对照组（CON-rTKA）。CAS-rTKA组（54名患者/62膝）在2012年至2017年期间使用无图像CAS进行rTKA。CON-rTKA组（13名患者/23膝）在2002年至2012年间使用常规技术进行手术。使用EOS-2D/3D系统（冠状和矢状平面）和计算机断层扫描（旋转）测量术后对准。
■CAS-rTKA和CON-rTKA组的冠状和矢状排列在腿的机械角度方面没有发现显着差异（p=0.08），机械外侧股骨远端角度（p=0.87），胫骨近端机械内侧角（p=0.40），解剖学近端胫骨后角（p=0.43）或股骨（p=0.80）和胫骨旋转（p=0.15）。对于日冕的比例，矢状和旋转异常值,也没有发现显著差异.
■这项研究没有证据表明在rTKA期间使用CAS会导致冠状，膝关节假体的矢状或旋转对齐或组间异常值的差异。
■三级,治疗。
