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首页> 外文会议>International Society for Computer Assisted Orthopaedic Surgery >Computer-assisted total knee replacement - Results of the first 90 cases using the Stryker navigation system
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Computer-assisted total knee replacement - Results of the first 90 cases using the Stryker navigation system

机译：计算机辅助全膝关节置换 - 使用Stryker导航系统的前90例案例的结果

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Objectives: To report the alignment and early results of the first ninety total knee replacements performed with the aid of a computerized infrared tracking system. Background: Last year we reported our early results of the first thirty total knee replacements performed with this navigation system. The system employs rigid infrared markers fixed to the bones along with digitized anatomic landmarks and a calculation of the femoral head center. Range of motion and alignment can be followed intraoperatively and adjustments can be made prior to insertion of final components. Design/Methods: The first ninety consecutive patients to undergo a computer-assisted total knee replacement, including the thirty from last year's study, were evaluated. Pre- and postoperative alignments were measured on four foot standing radiographs. Preoperative, 6 weeks, 3 months, 6 months, and 1 year ranges of motion were measured. Knee scores and function scores were calculated. Results: Ranges of motion, alignment, and knee and function scores obtained with computer-assisted total knee replacement are equal to or better than those obtained using standard knee systems. There was one broken distal femoral pin removed without incident. Our initial surgery times are twenty minutes longer. Eighty-one patients have postoperative standing radiographs for evaluation. Sixty-four patients are within one degree of perfect neutral alignment. Twelve patients had errors of 2 degrees. Four patients had 3 degree errors and one patient had 4 degree errors.
机译：目标：报告借助于计算机的红外跟踪系统进行的第一个九十个膝关节替换的对齐和早期结果。背景：去年我们报告了我们的早期结果，使用该导航系统进行了第一个三十个总膝关节替代品。该系统采用固定到骨骼的刚性红外标记，以及数字化解剖标签和股骨头中心的计算。可以术上运动和对准范围，并且可以在插入最终组分之前进行调整。设计/方法：第一个九十连续患者进行计算机辅助全膝关节置换，包括从去年的研究中的三十次进行。在四英尺静止射线照片上测量预先和术后比对。术前，6周，3个月，6个月和1年的动作范围。计算膝关节分数和功能分数。结果：用计算机辅助总膝盖替换获得的运动，对准和膝关节和膝关节和功能分数等于或优于使用标准膝部系统获得的膝关节。没有事件，有一个破损的远端股别针。我们的初始手术时间是二十分钟的时间。八十一名患者具有术后展示射线照片进行评估。六十四名患者在一定程度的完美中性方面。 12名患者的误差为2度。四名患者有3度误差，一名患者有4度误差。

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