Accuracy of a novel extramedullary femoral alignment guide system in primary total knee arthroplasty

摘要: We aimed to assess the accuracy of a new extramedullary guide system for achieving appropriate femoral component alignment in total knee arthroplasty (TKA) and determine whether it differed between patients operated on by different surgeons. performed 100 consecutive primary TKAs using newly developed guide, “S guide”; 50 were author KM at A Hospital, NM B Hospital. All received Vanguard RP mobile-bearing prosthesis (Biomet Japan, Tokyo, Japan). assessed coronal sagittal with mechanical axis plane radiographs. Data analyzed statistically Prism 5.0 software, p value of <0.05 was regarded as indicating significance. The mean postoperative angle (α) 0.1° ± 1.4°, no significant differences Hospital (p = 0.67), 98 % had an α deviating less than 3° from axis. (γ) 1.7° ± 1.7°, groups (p = 0.61), 86 % γ This study shows that S-guide is reliable use TKA.