[Electroneurographic parameters in cubital neuropathy of the elbow]

Using conventional techniques with cutaneous electrodes, 14 parameters of antidromic, motor and mixed segmentary sensory conduction of the cubital nerve were assessed in the first 45 patients presenting to us with some form of electroneurographic abnormality. Changes suggestive of axonal degeneration due to a decrease in amplitude or conduction velocity of the distal segment were found in 17. The remaining 28 patients showed only signs of change in conduction velocity at the elbow and could be classified according to electroneurographic degrees of progressive abnormality. Changes in antidromic sensory conduction are early and constant, constituting the parameter of choice for detection of slight compressive neuropathy.