A Continuous Passive Motion (CPM) machine is a motorized device that gently moves a joint through a pre-set range of motion. It is used to help with recovery after undergoing joint surgery, such as knee or hip surgery, and can also be used to treat conditions such as osteoarthritis or after a fracture in the arm or leg. The machine provides regular joint movements without people needing to use their muscles, which can help bend a joint that may be stiff and difficult to move. By increasing the fluid movement around the repaired joint, the continuous passive movement helps to reduce swelling, while also reducing pain. CPM machines are most commonly applied to the knee, but there are versions for other joints such as the hip, shoulder, and elbow).
Although some studies suggest that CPM machines may be beneficial in some situations, positive results are inconsistent and these studies often have small sample sizes. Many doctors no longer recommend CPM machines because newer research does not support their use. However, some healthcare providers may still recommend using CPM machines with other treatments such as physical therapy. It is important to confirm with your doctor that a CPM machine is right for you, and ask about alternative treatments.
If a person has access to Medicare health insurance, they may be eligible for a CPM machine to use at their home. If they meet the criteria and require a CPM machine after undergoing knee surgery, Medicare can provide a CPM machine for people to use at their home for up to 21 days. People can discuss costs and whether they are able to rent or buy the machine with their doctor.
In summary, a CPM machine is a device that slowly and gently moves a joint through a pre-set range of motion to help with recovery after undergoing joint surgery or to treat conditions such as osteoarthritis or after a fracture in the arm or leg. Although some studies suggest that CPM machines may be beneficial in some situations, newer research does not support their use, and many doctors no longer recommend them. It is important to confirm with your doctor that a CPM machine is right for you, and ask about alternative treatments.
