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M. Bashar Katirji, MD
Director, Electromyography Laboratory Presbyterian-University Hospital Department of Neurology 322 Scaife Hall Pittsburgh, PA 15261

Arch Neurol. 1986;43(12):1222.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.

—I read with great interest the excellent review by Kline et al¹ in which the diagnosis and treatment of brachial plexus lesions was discussed. I would dispute the statement that "there are no good sensory stimulation and recording sites to test the C-5 root." The lateral cutaneous nerve of the forearm is a terminal sensory branch of the musculocutaneous nerve, and supplies the lateral volar forearm to the wrist. It has fibers originating primarily from the C-5 root. The techniques of stimulation and recording its sensory nerve action potential are well established.^2,3 It is an excellent study for differentiating a preganglionic lesion, such as a C-5 root avulsion, from a postganglionic lesion, such as an upper trunk and/or lateral cord lesion. I think that this study should be done in all patients with a suspected brachial plexus lesion, especially in stretchcontusion injuries in which the . . . [Full Text PDF of this Article]

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