ACCESSORY DEEP PERONEAL NEUROPATHY - COLLISION TECHNIQUE DIAGNOSIS

Accessory deep peroneal nerve (ADPN), a common anatomic variant, is tr aditionally suspected when common peroneal nerve stimulation evokes a greater amplitude extensor digitorum brevis compound muscle action pot ential than deep peroneal nerve (DPN) stimulation. Posterolateral ankl e stimulation over the ADPN is confirmatory. We report a rare patient with ADPN neuropathy in whom the collision technique was necessary to confirm the presence of an ADPN and to distinguish between neuropathy of the ADPN and the DPN. (C) 1998 John Wiley & Sons, Inc.