Continuous passive motion

Written by Dr Sheila Strover on March 14, 2025

Continuous passive motion is a rehabilitation technique where the knee is very gradually bent and straightened, over periods of hours, using a CPM machine. Page updated July 2023 by Dr Sheila Strover (Clinical Editor)

continuous passive motionOnce the CPM machine parameters or speed and range of motion have been set, then the patient can just relax and the machine will continue to bend and straighten the limb.

Maintaining range of motion

This is to maintain mobility and prevent the formation of adhesions.

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