人工膝关节置换术后连续被动活动对关节功能的影响

目的观察连续被动活动(CPM)对人工膝关节置换术后膝关节功能的恢复情况,进行临床对照研究评估连续被动活动在全膝置换术后康复中的作用。方法将本院行首次全膝置换的44例患者以单纯随机抽签方法分成两组,23例术后除行物理康复治疗外辅助应用CPM康复治疗,21例患者仅行物理康复治疗。对所有患者进行术后随访,记录术后第7,10,14天,6周,6个月及1年时的关节活动范围(ROM)。结果与未应用CPM组相比,应用CPM组患者平均膝关节活动度在术后7,10,14d,6周,3,6个月及1年时分别多19°,15°,10°,8°,8°,2°和5°(t=4.763,3.621,3.529,2.614,2.507,2.178,2.117,P<0.05)。结论CPM有助于全膝置换患者术后较早恢复膝关节活动度。

The effect of continuous passive motion after total knee arthroplasty on joint function

Aim To evaluate the role of continuous passive motion(CPM) after total knee arthroplasty(TKA) through a comparative clinical study.Methods 44 patients who accepted a primary TKA in our hospital were randomly assigned to one of the two groups by drawing cuts: 23 cases were treated with CPM and physical therapy among 2 weeks after operation, 21 cases received physical therapy only.All patients were followed up and the range of motion(ROM) was recorded on the seventh, tenth and fourteenth day.ROM was also measured at six weeks,three months,six months and one year after TKA.Results ROM was average 19° ,15° ,10° ,8° ,8° ,2° and 5° greater in CPM group than that in no CPM group at 7, 10, 14 days, 6 weeks, 3, 6 months and one year after TKA(t=4.763,3.621,3.529,2.614,2.507,2.178,2.117， P< 0.05).Conclusion CPM is a useful machine in the rehabilitation after total knee arthroplasty which can help the patients regain the range of motion of the knee joint more quickly.