A Control Study Of CPM To Range Of Motion After Total Knee Arthroplasty

Objectives: The improvement of range of motion (ROM) is one of important target after total knee arthroplasty(TKA).To achieve better ROM,many patients receive continuous passive motion after TKA.To study the effection of total knee arthroplasty with continuous passive motion.Method: 68 patients(74 knees) with osteoarthritis(OA) and rheumatoid arthritis (RA) who accepted a primary TKA in our hospital from January 2004 to March 2006 were randomly assigned to one of the two groups by drawing cuts:36 cases(38 knees) were treated with CPM and rehabilitation treatment,32 cases(36 knees) received rehabilitation treatment only. All patients were followed up and ROM was recorded at the two weeks, four weeks, three months, six months and one year after TKA. The machine was made by ke hui company of Zhejiang province.Result: There was a marked difference both in the CPM group and the control group active and passive range of motion of knee joint in the early postoperative period(P<0.05). however, there was no difference at the time of three months, six months and one year after TKA(P>0.05).Conclusion: Compare with the control group, the CPM group can improve obviously the range of motion at the two weeks and six weeks after TKA, but the two ways achieve the same results at the three months, six months and one year after TKA...