Definition of Hypertonia

Hypertonia: Increased tightness of muscle tone. Untreated hypertonia can lead to loss of function and deformity. Treatment is by physical and/or occupational therapy, and in some cases muscle relaxant medication. Injections of botulism toxin (botox) are a recent treatment for chronic hypertonia in cerebral palsy and other disorders. Also known as spasticity.

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