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The contribution of a spinal mechanism in developing peripheral myoclonus: A case report
Author(s) -
Shin HaeWon,
Ye Byung S.,
Kim Jinkwon,
Kim Seung M.,
Sohn Young H.
Publication year - 2007
Publication title -
movement disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.352
H-Index - 198
eISSN - 1531-8257
pISSN - 0885-3185
DOI - 10.1002/mds.21418
Subject(s) - myoclonus , lesion , medicine , peripheral , spinal cord , peripheral nerve , lumbar , sciatic nerve , anatomy , nerve root , thigh , anesthesia , femoral nerve , peripheral nervous system , surgery , central nervous system , psychiatry
Focal myoclonus of peripheral origin, i.e., peripheral myoclonus (PM), is a rare disorder. Although PM always accompanies a lesion in the peripheral nerve, supplying the affected muscles, its mechanism remains unclear. Here we present a patient with focal myoclonus of the thigh muscles following a traumatic lesion in the femoral nerve. Lumbar spinal anesthesia, as well as local anesthetic block of the femoral nerve, completely abolished the patient's myoclonus temporarily. This movement was remarkably diminished after a surgical exploration of the wound with the removal of fibrous tissue beneath the scar and liberation of the femoral nerve. This case suggests the contribution of a spinal relay mechanism in the development of PM, in addition to the contribution of a nerve lesion. © 2007 Movement Disorder Society