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 .
To use or not to use continuous passive motion post-total knee arthroplasty presenting functional assessment results in early recovery.
Continuous passive motion ( CPM ) , though of doubtful value , is yet routinely practice d post-total knee arthroplasty ( TKA ) . We prospect ively distributed 84 patients with TKA to 1 of the 3 st and ard rehabilitation regimes : no-CPM , 1-day-CPM , and 3-day-CPM .  We recorded a unique " Timed up and go " test besides pain , Western Ontario and McMaster Universities ( WOMAC ) , short form-12 ( SF-12 ) , range of motion , knee and calf swelling , and wound healing parameters . Our st and ardized and elaborate measurements preoperatively and on postoperative days 3 , 5 , 14 , 42 , and 90 showed no statistically significant difference among the 3 groups in each parameter . We concluded that CPM gives no benefit in immediate functional recovery post-TKA , and in fact , the postoperative knee swelling persisted longer . We have since then discontinued its use in our patients without any untoward effect
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 .