Department of Orthopaedics Surgery, Chonnam National University Hwasun Hospital, Jeonnam, South Korea.
J Arthroplasty. 2014 Dec;29(12):2402-6. doi: 10.1016/j.arth.2014.03.033. Epub 2014 Mar 31.
We compared the intraoperative varus-valgus stability from 0° to 90° of flexion and postoperative clinical outcomes in patients receiving TKA via either a single-radius femoral design (50 TKA, SR group) or multi-radius femoral design (50 TKA, MR group). We measured stabilities at 0°, 30°, 60° and 90° of flexion using a navigation system. The clinical outcomes including HSS scores, WOMAC scores and VAS score during stair climbing were compared after a minimum of 2-year follow-up. The single-radius femoral designs in TKA showed better intra-operative stability at 30° of flexion (7.6 vs. 8.3) compared with the multi-radius femoral design, but not at other angles. However, the clinical outcomes revealed no other significant differences in terms of HSS scores, WOMAC scores and VAS score between two groups.
我们比较了接受单半径股骨设计（50 例 TKA，SR 组）或多半径股骨设计（50 例 TKA，MR 组）行全膝关节置换术患者在 0°至 90°屈曲时的术中内翻-外翻稳定性和术后临床结果。我们使用导航系统在 0°、30°、60°和 90°屈曲时测量稳定性。在至少 2 年的随访后，比较了 HSS 评分、WOMAC 评分和爬楼梯时 VAS 评分等临床结果。与多半径股骨设计相比，单半径股骨设计在 30°屈曲时具有更好的术中稳定性（7.6 比 8.3），但在其他角度则没有。然而，在 HSS 评分、WOMAC 评分和 VAS 评分方面，两组之间没有发现其他显著差异。
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