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Jack E. Riggs, MD
Department of Neurology West Virginia University Medical Center Morgantown, WV 26506

Arch Neurol. 1985;42(3):205.

	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.

—Despite long-standing suspicions^1-4 and scant epidemiologic evidence,^5-7 trauma is far too common to implicate as a direct cause of amyotrophic lateral sclerosis (ALS). However, the occurrence of ALS in a young man nine months following radial nerve injury suggested a possible mechanism for their association.

Report of a Case.

—A 33-year-old man slipped while walking on a moving railroad car. He was able to hang on to a bar with his left hand. His body was suddenly twisted, and he experienced an "electricshock" sensation radiating down his left arm. Immediately after getting off the train, he could not extend his left wrist. On neurologic evaluation four weeks later, left wrist extensors were grade 4 (Medical Research Council Scale), left finger extensors were grade 4—, and left deltoid and triceps were grade 5. Electromyographic studies indicated left radial conduction block and axonal injury. The remaining results . . . [Full Text PDF of this Article]

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