Adult Reconstruction and Joint Replacement Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, New York 10021, USA.
J Arthroplasty. 2011 Dec;26(8):1527-33. doi: 10.1016/j.arth.2011.01.012. Epub 2011 Mar 11.
Tibial intramedullary or extramedullary alignment guides have not been shown to be highly accurate in performing the tibial resection in total knee arthroplasty (TKA). Since May 2010, a total of 42 knees underwent a TKA using a hand-held, accelerometer-based surgical navigation system for performing the tibial resection (KneeAlign; OrthAlign Inc, Aliso Viejo, Calif). Postoperative standing anteroposterior hip-to-ankle and lateral knee-to-ankle radiographs demonstrated that 97.6% of the tibial components were placed within 90° ± 2° to the mechanical axis in the coronal plane, and 96.2% of the components were placed within 3° ± 2° to the mechanical axis in the sagittal plane. The KneeAlign greatly improves the accuracy of tibial component alignment in TKA.
胫骨髓内或髓外定位导板在全膝关节置换术（TKA）中进行胫骨切除时并未显示出高度准确性。自 2010 年 5 月以来，共有 42 例膝关节采用手持、基于加速度计的手术导航系统进行 TKA，以进行胫骨切除（KneeAlign；OrthAlign Inc，加利福尼亚州 Aliso Viejo）。术后站立前后髋踝和侧膝踝 X 线片显示，97.6%的胫骨部件在冠状面机械轴±2°范围内，96.2%的部件在矢状面机械轴±2°范围内。KneeAlign 大大提高了 TKA 中胫骨部件对线的准确性。
