患者特异性器械的术中导航并不能预测最终植入物的位置。
Intraoperative navigation of patient-specific instrumentation does not predict final implant position.
作者信息
Abdel Matthew P, von Roth Philipp, Hommel Hagen, Perka Carsten, Pfitzner Tilman
机构信息
Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.
Center for Musculoskeletal Surgery - Orthopedic Department, Charité - Universitätsmedizin Berlin, Berlin, Germany.
出版信息
J Arthroplasty. 2015 Apr;30(4):564-6. doi: 10.1016/j.arth.2014.11.005. Epub 2014 Nov 11.
UNLABELLED
The purpose of this study was to determine if intraoperative navigation predicted final implant position of total knee arthroplasties (TKAs) performed with patient-specific instrumentation (PSI). We retrospectively reviewed 60 TKAs performed with PSI and imageless navigation. These values were compared to postoperative coronal alignment based on long-leg radiographs, as well as rotation and tibial slope based on CT scans. The intraoperative coronal position of the tibia as measured by the intraoperative navigation indicated a significantly higher deviation from the neutral mechanical axis than the actual final position (P=0.03). Similarly, tibial slope and femoral component rotation measured by intraoperative navigation significantly deviated from the final slope and femoral component rotation (P<0.0001). In conclusion, intraoperative navigation of PSI position showed a significantly high deviation from the true final implant position.
LEVEL OF EVIDENCE
Level III, therapeutic. See Instructions to Authors for a complete description of levels of evidence.
未标注
本研究的目的是确定术中导航能否预测使用患者特异性器械（PSI）进行的全膝关节置换术（TKA）的最终植入物位置。我们回顾性分析了60例使用PSI和无影像导航进行的TKA。将这些数值与基于长腿X线片的术后冠状位对线以及基于CT扫描的旋转和胫骨斜率进行比较。术中导航测量的胫骨术中冠状位与中立机械轴的偏差明显高于实际最终位置（P = 0.03）。同样，术中导航测量的胫骨斜率和股骨组件旋转与最终斜率和股骨组件旋转有显著偏差（P < 0.0001）。总之，PSI位置的术中导航与真实最终植入物位置有显著的高偏差。
证据水平
III级，治疗性。有关证据水平的完整描述，请参阅作者指南。
Zotero 插件