A continuous passive motion (CPM) machine allows for joint movement after surgery. Learn about how CPM machines work, how they can help, and how to get one.

What is a CPM machine? A continuous passive motion (CPM) machine is a motorized device that passively moves a joint through a pre-set range of motion.

CPM treatment in the home situation was a self-management treatment. Patients received the CPM machine, which was adjusted to their individual needs and characteristics.