CPM (Continuous Passive Motion) devices are medical devices used in the rehabilitation process that passively move large joints such as the knee and hip within a set range of angle and speed, without the person needing to use active muscle strength. They are usually considered during physical therapy and rehabilitation, in line with the physician's assessment.
What is a CPM device and what is it used for?
These devices may be used after joint surgery or in certain musculoskeletal conditions to help move the joint gently in the early period. The areas that continuous passive motion generally supports are:
- Contributing to preserving the joint's range of motion
- Reducing the likelihood of joint stiffness developing
- Supporting the rehabilitation program
Use of the device and its range of motion, speed and duration settings are individual and are determined in line with the specialist physician's prescription and the physiotherapist's guidance.
How does the device work?
A CPM device consists of parts that support the lower and upper parts of the leg. After the leg is placed in the device and positioned appropriately, the joint is moved within a predetermined range of angle and speed. The range of motion, kept narrow at first, may be changed gradually according to the person's condition. Devices may be electrically powered or operated by air pressure.
Application process
Application usually includes the steps of assessment, making settings suited to the person and regular follow-up of the process. Settings are made only by the relevant healthcare professional; the device may be planned as part of an individual rehabilitation plan together with other exercises and treatments.
This content is for informational purposes only; you should consult your physician for diagnosis and treatment.
