Effects of Elbow Position on Conduction Velocity of the Ulnar Nerve

The conduction velocity of the ulnar nerve must be determined in different segments; across elbow, below elbow and above elbow for diagnosis of cubi-tal tunnel syndrome. The test is usually made when the elbow is in full extension. However the position of the elbow seems to influence the conduction ve-locity of the motor axons of the ulnar nerve. In this study we determined motor and mixed nerve conduction velocities of the ulnar nerve in dif-ferent segments-across elbow and below elbow -al dillerent elbow positions (180, 90, 45). We havt found that when the elbow is flexed, the slowing of the motor conduction velocity of the ulnar nerve in across elbow segment is statistically significant. The results are discussed ander the light of the other literatures.