Accuracy of A Handheld Accelerometer-Based Navigation System for Femoral and Tibial Resection in Total Knee Arthroplasty
Accuracy of A Handheld Accelerometer-Based Navigation System for Femoral and Tibial Resection in Total Knee Arthroplasty
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DOI：
10.1016/j.arth.2015.05.055
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发表时间：
2015-11-01
影响因子：
3.5
通讯作者：
Bugbee, William D.
中科院分区：
文献类型：
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作者：
Huang, Eddie H.;Copp, Steven N.;Bugbee, William D.
全膝关节置换术（TKA）中机械轴的恢复与植入物生存率的提高相关。我们使用手持式加速计导航系统评估了TKA的准确性和所需手术时间。收集的53例患者的数据包括组装、切除和止血带时间。在X线片上测量种植体对线和机械轴。股骨对线为0.29 ° +/- 2.2 °内翻。胫骨对线为0.09 ° +/- 1.4 °外翻。术后机械轴为0.2 ° +/- 2.1 °内翻。股骨、胫骨和枢椎的对线不良率分别为13%、3.8%和17%。股骨的固定和导航平均时间为3.6分钟，胫骨为2.6分钟;止血带平均时间为62分钟。该导航系统准确地重建了机械轴，而不增加手术时间。(C)2015 Elsevier Inc. All rights reserved.
Restoration of mechanical axis in total knee arthroplasty (TKA) is correlated with improved implant survivorship. We assessed the accuracy and required surgical time using a hand-held accelerometer-based navigation system for TKA. Data collected on 53 patients included assembly, resection, and tourniquet times. Implant alignment and mechanical axis were measured on radiographs. Femoral alignment was 0.29 degrees +/- 2.2 degrees varus. Tibial alignment was 0.09 degrees +/- 1.4 degrees valgus. Postoperative mechanical axis was 0.2 degrees +/- 2.1 degrees varus. Malalignment rates for the femur, tibia, and axis were 13%, 3.8%, and 17%, respectively. Average time for pinning and navigating was 3.6 minutes for the femur and 2.6 minutes for the tibia; mean tourniquet time was 62 minutes. This navigation system accurately re-established mechanical axis without increasing surgical time. (C) 2015 Elsevier Inc. All rights reserved.