A member asked:

How soon after a total knee replacement could someone use a continuous passive motion (cpm) exercise machine?

4 doctors weighed in across 2 answers

1 hours: Ideally you should be placed on it in the recovery room whole still sedated. Once you are able to move the knee on your own, the benefit of continuous passive motion is less apparent.

Answered 1/5/2018

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Dr. David Fisher answered

Specializes in Orthopedic Surgery

Immediately: The cpm machine was designed to get the knee moving after surgery. While studies have not shown any long term difference in total knee patients with or without the use of cpm, it can be used after surgery and may help some patients with preoperative stiffness in the knee. It is not absolutely required after tka.

Answered 1/5/2018

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