Virginia Tech Carilion School of Medicine, Roanoke, Virginia 24106, USA.
J Arthroplasty. 2011 Dec;26(8):1432-7. doi: 10.1016/j.arth.2010.11.011. Epub 2011 Feb 5.
Advocates for navigated (NAV) total hip arthroplasty (THA) emphasize the potential for improved component placement. We reviewed published literature to investigate the claim of increased precision of acetabular component placement in navigated THA compared to conventional (N-NAV) THA. Major medical and publishers' databases were searched, making no restrictions for study type, yet restricting results to English-language sources. Nine studies of varying methodological quality involving 1479 THA with a mean age of 59.10 years were included. There was no statistically significant difference in mean acetabular component abduction and anteversion angles between the NAV and N-NAV groups. There was a statistically significant difference in the incidence of acetabular component placement in the "safe zone," with NAV having significantly more "safe placements" than N-NAV, regardless of the chosen safe zone. In addition, NAV had significantly fewer dislocations than N-NAV. These outcomes demonstrate the possible patient benefit from navigation and resulting tighter control of component position.
倡导使用导航（NAV）全髋关节置换术（THA）的人强调了改善组件放置的潜力。我们查阅了已发表的文献，以调查与传统（非导航）THA 相比，NAV-THA 在髋臼组件放置方面精度提高的说法。主要的医学和出版商数据库进行了搜索，对研究类型没有限制，但将结果限制在英语来源。共纳入了 9 项研究，涉及 1479 例平均年龄为 59.10 岁的 THA。NAV 组与 N-NAV 组的髋臼组件外展和前倾角的平均值没有统计学差异。髋臼组件放置在“安全区”的发生率存在统计学差异，无论选择哪个安全区，NAV 的“安全放置”明显多于 N-NAV。此外，NAV 的脱位发生率明显低于 N-NAV。这些结果表明，导航可能对患者有益，并能更严格地控制组件位置。
