What are fibrillation potentials Why are they important in assessing radiculopathy

Fibrillation potentials are spontaneous and regularly firing action potentials of individual denervated muscle fibers. Fibrillation potentials are a sensitive indicator of motor axon loss. They can be observed in neuropathy, direct nerve and muscle trauma, myopathy, and some neuromuscular transmission disorders. Fibrillation potentials appear approximately 14 days after nerve fiber injury. However, they appear within 1 week in paraspinal muscles and within 3 to 6 weeks in the distal limb. Fibrillations can persist for 18 to 24 months or longer, until muscle fibers are reinnervated.

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How To Win Your War Against Back Pain

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