Huang Hsuan-Ti, Liang Jing-Min, Hung Wei-Tso, Chen Ying-Yi, Guo Lan-Yuen, Wu Wen-Lan
Department of Sports Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 701, Taiwan.
BMC Musculoskelet Disord. 2014 Jun 10;15:198. doi: 10.1186/1471-2474-15-198.
This study hopes to establish the timeframe for a safe return to driving under different speed conditions for patients after minimally invasive total knee arthroplasty and further explores how well various kinds of functional tests on knee performance can predict the patients' braking ability.
14 patients with right knee osteoarthritis were included in the present study and instructed to perform three simulated driving tasks at preoperative, 2 weeks postoperative and 4 weeks postoperative.
The results showed that the total braking time at 4 week postoperative has attained the preoperative level at the driving speed 50 and 70 km/hr but not at the driving speed 90 km/hr. It had significantly improving in knee reaction time and maximum isometric force at 4 weeks postoperative. Besides, there was a moderate to high correlation between the scores of the step counts and the total braking time.
Summary, it is recommended that driving may be resumed 4 weeks after a right knee replacement but had to drive at low or moderate speed and the best predictor of safety driving is step counts.
本研究希望确定微创全膝关节置换术后患者在不同速度条件下安全恢复驾驶的时间框架，并进一步探讨各种膝关节功能测试对患者制动能力的预测效果。
本研究纳入14例右膝骨关节炎患者，指导他们在术前、术后2周和术后4周进行三项模拟驾驶任务。
结果显示，术后4周时，在50和70公里/小时的驾驶速度下，总制动时间已达到术前水平，但在90公里/小时的驾驶速度下未达到。术后4周时，膝关节反应时间和最大等长肌力有显著改善。此外，步数得分与总制动时间之间存在中度至高度相关性。
总之，建议右膝置换术后4周可恢复驾驶，但必须以低速或中速行驶，安全驾驶的最佳预测指标是步数。
