AANEM Connect
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Does cross reinnervation (collateral sprouting) between the axons of two roots occur?
This is a real question. When there are two roots innervating a muscle and there is complete axonopathy to one of the two roots but not the other, do the axons from the unaffected root reinnervate (via collateral sprouting) the muscle fibers originally innervated by the other root? This question arose from seeing a patient with brachial plexopathy today.
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I enjoy participating in the AANEM Connect Forum for a number of reasons. There are very fundamental questions posed on a frequent basis that cause me to pause and ask myself, ‘Why didn’t I think of that?’ Also, I continue to learn new things when others contribute their thoughts and experiences. Connect is an excellent opportunity for members to interact and to address any topic, including those that may not be discussed at an annual meeting or journal article.
Daniel Dumitru, MD, PhD