Hi-Flexion and Gender-Specific Designs Fail to Provide Significant Increases in Range of Motion During Cruciate-Retaining Total Knee Arthroplasty

作者：Song Eun Kyoo; Park Sang Jin; Yoon Taek Rim; Park Kyung Soon; Seo Hyoung Yeon; Seon Jong Keun^*

来源：Journal of Arthroplasty, 2012, 27(6): 1081-1084.

DOI：10.1016/j.arth.2011.10.011

• cruciate retaining
• navigation
• high-flexion
• gender
• total knee arthroplasty

The effects of different femoral component designs on intraoperative range of motion were examined in 40 female patients during primary cruciate-retaining (CR) total knee arthroplasty. After complete bone resection and soft tissue balancing, standard CR, high-flexion, and gender-specific knee trials were sequentially inserted, and maximal flexion and extension under gravity were measured using a navigation system. Average maximal flexions were 134.3 degrees for standard CR knees, 136.2 degrees for high-flexion knees, and 136.4 degrees for gender-specific knees. No significant intergroup differences in intraoperative maximal flexion and extension were found (P %26gt; .05). High-flexion and gender-specific femoral designs were found to show subtle increases in intraoperative range of motion as compared with the standard design but no significant differences.

• 出版日期2012-6