The South West London Elective Orthopaedic Centre, Epsom and St. Helier University Hospitals NHS Trust, Epsom, Surrey, KT18 7EG, UK.
Int Orthop. 2009 Dec;33(6):1567-70. doi: 10.1007/s00264-008-0690-0. Epub 2008 Nov 26.
Computer navigation assistance in total knee arthroplasty (TKA) results in consistently accurate alignment of prostheses. We aimed to compare the outcome of computer-navigated and conventional TKA and to analyse the radiologically malaligned knees. We analysed 637 primary TKA, carried out by a single surgeon, over five consecutive years and divided them into two cohorts: group 1 = STA (standard instrumentation) and group 2 = CAS (computer-assisted surgery). There was no significant difference between the average Oxford Knee Scores (OKS) of the two groups at any time from one to five years. However, the malaligned TKA at three years had a worse OKS. At medium term there is no difference in clinical outcome measures that can be attributed to the surgeon having used computer-assisted navigation for TKA. But group 1, having a higher proportion of malaligned TKA, might show worsening of OKS at long term.
计算机导航辅助全膝关节置换术（TKA）可确保假体的准确定位。我们旨在比较计算机导航和传统 TKA 的结果，并分析放射学上对线不良的膝关节。我们分析了一位外科医生在连续五年内进行的 637 例初次 TKA，并将其分为两组：组 1 = STA（标准器械）和组 2 = CAS（计算机辅助手术）。两组在 1 至 5 年的任何时间的平均牛津膝关节评分（OKS）均无显著差异。然而，三年时对线不良的 TKA 的 OKS 更差。从中期来看，由于外科医生使用计算机辅助导航进行 TKA，因此在临床结果测量方面没有差异。但是，由于组 1 中有更高比例的对线不良 TKA，因此在长期随访中可能会出现 OKS 的恶化。
