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Related to myotonic myopathy: Steinert's disease


Tonic spasm or temporary rigidity of one or more muscles, often characteristic of various muscular disorders.

my′o·ton′ic (-tŏn′ĭk) adj.
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Adj.1.myotonic - of or relating to or caused by myotonia
References in periodicals archive ?
Executive dysfunction and avoidant personality trait in myotonic dystrophy type 1 (DM-1) and in proximal myotonic myopathy (PROMM/DM-2).
DM2, also called proximal myotonic myopathy, is rarer than DM1 and generally manifests with milder signs and symptoms, and is caused by an expanded CCTG repeat (from 75 to 11,000 repeats) in the first intron of the zinc finger protein 9 ( ZNF9 ) gene on chromosome 3q21.
Structural and functional mutations of the perlecan gene cause Schwartz-Jampel syndrome, with myotonic myopathy and chondrodysplasia.