THE pronator syndrome1 has been described as a compression neuropathy of the median nerve as it passes through the muscles of the proximal forearm. It may be acute, chronic or recurrent. The manifestations occur peripheral to the pressure point. Sensory or motor components may be involved in a variable fashion. The neuropathy is attributed to abnormal pressure on the nerve as it passes through or under the pronator teres. This pressure has generally been ascribed to hypertrophy of the muscle, although cases of abnormal fibrous bands have been noted.2 The clinical picture may be confused with that produced by a . . .
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Kopell et al. (1958) studied this question.