Continuous Passive Motion (week 12)

What is a CPM unit? 

A continuous passive movement (CPM) machine is a piece of equipment that moves the patient’s passively with the intent to increase or maintain motion.

It is typically applied 4-6 hours per day for 1-4 weeks after surgery.

Indications

Increase Range of Motion

Prevention of Post-Surgical Stiffness

Knee CPM are the most commonly used by PT/PTAs

• S/P TKA

• S/P ACL reconstruction

• Tibial plateau fracture

Benefits

Prevents development of adhesions and contractures that cause joint stiffness

Provides a stimulating effect on the healing of tendons and ligaments

Enhances healing of incisions over the moving joint

Increases synovial fluid lubrication of the joint and thus increases the rate of intra-articular cartilage healing and regeneration

Prevents the degrading effects of immobilization

Provides a quicker return of ROM

Decreases postoperative pain

Contraindications

•Deep Vein Thrombosis

•Active bleeding

•Opening incision

•Movement past the range of motion limitation indicated in the plan of care

precautions

Impaired mentation

Movement that is limited by other body part (stomach)

Impaired sensation

Adverse Effects

Increased bleeding inside the joint

Increased use of pain medication