1. Health
You can opt-out at any time. Please refer to our privacy policy for contact information.

CPM - Continuous Passive Motion

By

Updated June 15, 2009

CPM machine knee surgery

A CPM is often used after knee replacement surgery.

Image © Medical Multimedia Group
Definition: CPM is an abbreviation for continuous passive motion. A CPM device is a machine that is used to move a joint without the patient having to exert any effort.

A CPM machine is most commonly used on the knee joint, although there are CPM machines made for other joints as well. The CPM has a motor that bends the knee back and forth to a set number of degrees. The amount of movement of the CPM can be adjusted.

CPM machines are often applied after knee surgery, such as a knee replacement procedure. The effectiveness of CPM is debatable, as they have not been shown to offer superior results after standard surgical procedures.

  1. About.com
  2. Health
  3. Orthopedics
  4. Hip & Knee
  5. Treatments
  6. CPM - Definition of CPM

©2014 About.com. All rights reserved.

We comply with the HONcode standard
for trustworthy health
information: verify here.