CPM is a postoperative therapeutic modality that passively (without patient
effort) moves a synovial joint through a prescribed range of motion for an
extended period of time. It is most frequently used immediately post-operative,
but can be used for other types of therapy, such as RSD. Continuous motion has
to be passive by nature as active motion can not be sustained for the
prescribed extended time periods.
CPM is best applied immediately post-operatively and
continued, uninterrupted, for up to 6 weeks, or as prescribed by the physician.
CPM’s primary physiological benefits are the prevention of immobilization
disease, improved joint nutrition, enhanced circulation, and a more
functional re-modeled joint surface. These results were initially interpreted
from the animal studies performed by Dr. Salter. These studies showed the use
of CPM helps joint cartilage to heal with a more uniform collagen matrix to
leave the joint healthier with less tendency to develop disease, such as OA, or
to be re-injured.
Prevention of immobilization disease helps to prevent:
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Adhesion formation. A loss of range of motion from adhesions formation of cross
fibers and of scar tissue (collagen) in what should be a smoothly healing
matrix.
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Joint contractures, stiffness and loss of ROM.
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Degeneration of articular cartilage. Articular cartilage, as it begins to thin
from disuse, increases the risk of breaking apart
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Degeneration of periarticular structures. This is the breakdown of the
surrounding joint structures including the meniscus, ligaments, capsule, and
synovial layer.
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Helps reduce edema and pain, resulting in improved compliance with physical
therapy and exercise.
