What is the typical indication for using a continuous passive motion (CPM) machine?

The typical indication for using a continuous passive motion (CPM) machine is to promote healing and mobility after orthopedic surgery, particularly following knee surgeries. The CPM machine provides a gentle and consistent motion of a joint, which can help to increase circulation and nourish the cartilage, thereby promoting healing of the joint structures.

The use of a CPM machine is important after surgeries such as knee arthroscopy or total knee replacement because it aids in maintaining the range of motion while minimizing the risk of stiffness and joint contractures. This passive movement allows for early mobilization without the stress of active movement by the patient, which is especially beneficial in the initial stages of recovery.

Furthermore, while there are techniques to address muscle strength and reduce swelling, those are not the primary purposes of the CPM machine. Instead, its chief role centers around facilitating early motion, which directly supports postoperative recovery and rehabilitation.