Acta neurochirurgica. Supplement
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Acta Neurochir. Suppl. · Jan 2011
Anatomic study in cadaver of the motor branch of the musculocutaneous nerve.
This study of 80 cadavers demonstrates that the anatomic position of the motor branch of the musculocutaneous nerve with respect to that of the sensitive branch of the same nerve is lateral in more than 88% of cases in humans.The distance from plexus to the separation into the motor and sensitive fascicles was 8-9 cm long.Given the lateral position of the motor component of the musculocutaneous nerve, the nerves that are going to be used to neurotize this area can be directed so as to increase the efficacy of the results for the flexor function of the arm. ⋯ If the nerves that are to be used for neurotization of the musculacutaneous nerve are directly taken to the lateral fascicle of that nerve, which is generally the motor component, the treatment should be effective and should avoid the loss of motor axons resulting from anastomosing to the sensitive fascicle.