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CPM Machine Introduction

Continuous Passive Motion (CPM) is a postoperative treatment method that is designed to aid recovery after joint surgery. In most patients after extensive joint surgery, attempts at joint motion cause pain and as a result, the patientfails to move the joint. This allows the tissue around the joint to become stiff and for scar tissue to form resulting in a joint which has limited range of motion and often may take months of physical therapy to recovery that motion.

Passive range of motion means that the joint is moved without the patient's muscles being used. Continuous Passive Motion devices are machines that have been developed for patients to use after surgery.

Definition of CPM Machine

CPM machine is a  machine used to help rehabilitate Lower Limb Joint ( legs, knee,ankle and coxa etc.) and Upper Limb Joint (an arm, shoulder, elbow and finger etc.)

CPM machine devices for all continuous passive motion needs for the knee, shoulder and ankle. You can carry continuous passive motion machine units for either as a short term patient CPM machine rental or for CPM machine purchasing by a hospital or rehab clinic.

Every CMP (continuous passive motion ) machine is designed to be user-friendly, and is shipped ready for im mediate use right out of the box.

How to use CMP Machine

The setting of machine's speed, duration of usage, amount of motion, rate of increase of motion are all decide on the patient.

If you are surgery on knee, The Continuous Passive Motion Machine (CPM) will be used to gently bend (flex) and straighten (extend) your knee. Using this machine after surgery will help to decrease stiffness and increase range of motion in your new knee.

The CPM will be started when your surgeon feels it would be safe. The machine will be used on your new knee at least 4 hours during the day and all night. You also can  continue this program when you go home.

Conclusion

CPM Machine can offer beneficial results for patients. However, the potential benefits will need to be carefully weighed against the inconvenience and expense of CPM. More research is necessary to assess the differences in effectiveness with different characteristics of application such as total duration of treatment and intensity of CPM interventions.

For those people who have had traumatic orthopedic surgery, it is probably safe to argue that the effects of the surgery on the soft tissue are more detrimental to patient progress and recovery than the issue resolved by the procedure itself.

There is a case in point is Total joint arthroplasty , Replacement of the osteoarthritic joint components significantly reduces the patient’s joint pain and improves the likelihood of voluntary movement, but the trauma to the soft tissue and resultant immobility can cause long-lasting impairment and disability if not addressed immediately and appropriately.

Continuous passive motion (CPM) is one of the primary methods for decreasing the deleterious effects of immobilization and can deliver orthopedic, neurological, and even circulatory benefits to the patient. Immobilization, in turn, can create deleterious sequelae of physiological and functional impairments.

Continuous Passive Motion

CMP History

CPM,  was developed by Robert Salter, MD, evolved over the course of several decades, and is based on deductions that the inventor formulated through clinical observation and practice. The first of these is that prolonged immobilization of synovial joints causes many problems, including persistent stiffness and pain, muscle atrophy, disuse osteoporosis, and eventually degenerative arthritis when the joints are actively mobilized at a later time.2 Second, beneficial effects of early active motion were seen clinically, such as decreased edema, decreased pain, and shorter rehabilitation time.
 
Definition of CMP

The textbook definition of CPM might state, “CMP is a postoperative treatment method that is designed to aid recovery after joint surgery. In most patients after extensive joint surgery, attempts at joint motion cause pain and as a result, the patientfails to move the joint. "

CMP Machine

CMP Machine structure

CPM machines were primitive-looking devices, often composed of noisy motors, gears, pulleys, ropes, and bars. Functionally, they were designed to take a particular joint ( such as  legs, knee, ankle, coxa, arm, shoulder, elbow and finger etc.)), through a specific and limited ROM in a predictable pattern. With the advance of  predecessors in design and function, modern CPM machines adhere to the same basic principles, and have been developed for almost every joint imaginable, including the hip.

The beneficial effect of CMP Machine

There is a positive beneficial effect on the ability of CPM to decrease the effects of limb immobility , the primary causes of a deep vein thrombosis. As the CPM creates alternating muscular tension and then relaxation, it can assist the venous pump and keep fluids moving.

Conclusion

CMP machine following surgery can be a valuable treatment modality. Issues of pain, edema, stiffness, deep vein thrombosis, hip dislocation, and cost containment, as well as the myriad of functional impairments for the patient, can be addressed through sound medical practice and the use of valuable treatment modalities.

Only if you applied appropriately, CPM machines can work for the benefit of the patient in decreasing the deleterious effects of immobilization, while poviding a safe, comfortable treatment to the patient.


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