Victor J, Ries M, Bellemans J, Robb W M, Van Hellemondt G
Department of Orthopedics AZ St-Lucas, Brugge, Belgium.
Orthopedics. 2007 Aug;30(8 Suppl):77-9.
A multicenter study was performed to determine which patients have the most potential to benefit from total knee arthroplasty (TKA) with a high-flexion, guided-motion design. In 201 consecutive TKAs, the mean gain in range of motion (ROM) was 14 degrees at 3 months and 24 degrees at 6 months. The gain in flexion was significant at 3 and 6 months postoperatively. No differences were found based on preoperative diagnosis, age, or sex. There was a poor correlation between body mass index and ROM. Pre- and postoperative flexion also displayed a weak correlation. Patients with the least preoperative flexion (<90 degrees) gained the most degrees of flexion (26 degrees). We conclude that the use of a high-flexion, guided-motion TKA allows a significant functional improvement in patients with preoperative stiffness and the preservation of good flexion in patients with normal preoperative flexion.
进行了一项多中心研究，以确定哪些患者最有可能从采用高屈曲、导向运动设计的全膝关节置换术（TKA）中获益。在201例连续的全膝关节置换术中，术后3个月时活动范围（ROM）平均增加14度，6个月时增加24度。术后3个月和6个月时屈曲增加显著。根据术前诊断、年龄或性别未发现差异。体重指数与活动范围之间相关性较差。术前和术后的屈曲之间也显示出弱相关性。术前屈曲最少（<90度）的患者屈曲增加最多（26度）。我们得出结论，使用高屈曲、导向运动的全膝关节置换术可使术前僵硬的患者功能显著改善，并使术前屈曲正常的患者保持良好的屈曲度。
