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| Hypertonia | |
| Classification and external resources | |
| ICD-10 | P94.1 |
|---|---|
| ICD-9 | 358, 779.89 |
| DiseasesDB | 20872 |
| MeSH | [1] |
Hypertonia is an upper motor neuron dysfunction marked by an abnormal increase in tightness of muscle tone and a reduced ability of a muscle to stretch (i.e. an increased stiffness). Hypertonia is usually a feature of spasticity in particular muscles. These features are common in cerebral palsy.
A form of hypertonia unrelated to spasticity is known as Paratonia which is associated with dementia.
See also
External links
- "The Clasp Knife Phenomenon" at mcg.edu
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