The correlation of neurophysiological findings with clinical and functional status in patients following traumatic nerve injury.

Abstract

In this study, we aimed to determine whether there is a correlation between the electrodiagnostic findings and the functional status, muscle strength and sensibility in patients with traumatic nerve injury to the wrists. We assessed 50 patients at a mean of 11.6 months (SD 5.85) (range 6-25) after nerve injury. Sensibility was assessed by monofilament testing. Motor function was evaluated by assessing the manual muscle grade of the abductor pollicis brevis and abductor digiti minimi muscles. Function was evaluated by the Sollerman Hand Function Test. The amplitudes of the compound muscle action potential and the sensory nerve action potential were determined by electroneuromyography. While the compound muscle action potential and sensory nerve action potential amplitudes had significant correlation with muscle grade and Semmes Weinstein Monofilament tests, there was no correlation with the functional scores.