The estimates for risk of manipulation and adverse events are very imprecise and the estimate for the risk of adverse events does not distinguish between a clinical ly important increase and decrease in risk .
There was insufficient evidence to determine the effect of CPM on participants ' global assessment of treatment effectiveness .
CPM does not have clinical ly important effects on active knee flexion ROM , pain , function or quality of life to justify its routine use .
BACKGROUND Arthritis of the knee is a common problem causing pain and disability .
If severe , knee arthritis can be surgically managed with a total knee arthroplasty .
Rehabilitation following knee arthroplasty often includes continuous passive motion ( CPM ) .
CPM is applied by a machine that passively and repeatedly moves the knee through a specified range of motion ( ROM ) .
It is believed that CPM increases recovery of knee ROM and has other therapeutic benefits .
However , it is not clear whether CPM is effective .
OBJECTIVES To assess the benefits and harms of CPM and st and ard postoperative care versus similar postoperative care , with or without additional knee exercises , in people with knee arthroplasty .
This review is an up date of a 2003 and 2010 version of the same review .
Effectiveness of continuous passive motion and conventional physical therapy after total knee arthroplasty: a randomized clinical trial.
BACKGROUND AND PURPOSE This r and omized clinical trial was conducted to compare the effectiveness of 3 in-hospital rehabilitation programs with and without continuous passive motion ( CPM ) for range of motion ( ROM ) in knee flexion and knee extension , functional ability , and length of stay after primary total knee arthroplasty ( TKA ) . SUBJECTS Eighty-one subjects who underwent TKA for a diagnosis of osteoarthritis were recruited . METHODS All subjects were r and omly assigned to 1 of 3 groups immediately after TKA : a control group , which received conventional physical therapy intervention only ; experimental group 1 , which received conventional physical therapy and 35 minutes of CPM applications daily ; and experimental group 2 , which received conventional physical therapy and 2 hours of CPM applications daily . All subjects were evaluated once before TKA and at discharge . The primary outcome measure was active ROM in knee flexion at discharge . Active ROM in knee extension , Timed " Up & Go " Test results , Western Ontario and McMaster Universities Osteoarthritis Index question naire scores , and length of stay were the secondary outcome measures . RESULTS The characteristics of and outcome measurements for the subjects in the 3 groups were similar at baseline . No significant difference among the 3 groups was demonstrated in primary or secondary outcomes at discharge . DISCUSSION AND CONCLUSION The results of this study do not support the addition of CPM applications to conventional physical therapy in rehabilitation programs after primary TKA , as applied in this clinical trial , because they did not further reduce knee impairments or disability or reduce the length of the hospital stay
The estimates for risk of manipulation and adverse events are very imprecise and the estimate for the risk of adverse events does not distinguish between a clinical ly important increase and decrease in risk .
There was insufficient evidence to determine the effect of CPM on participants ' global assessment of treatment effectiveness .
CPM does not have clinical ly important effects on active knee flexion ROM , pain , function or quality of life to justify its routine use .
BACKGROUND Arthritis of the knee is a common problem causing pain and disability .
If severe , knee arthritis can be surgically managed with a total knee arthroplasty .
Rehabilitation following knee arthroplasty often includes continuous passive motion ( CPM ) .
CPM is applied by a machine that passively and repeatedly moves the knee through a specified range of motion ( ROM ) .
It is believed that CPM increases recovery of knee ROM and has other therapeutic benefits .
However , it is not clear whether CPM is effective .
OBJECTIVES To assess the benefits and harms of CPM and st and ard postoperative care versus similar postoperative care , with or without additional knee exercises , in people with knee arthroplasty .
This review is an up date of a 2003 and 2010 version of the same review .