The effects of magnetic resonance imaging on different types of microsurgical clips.

Further investigations including full blood count, ESR, VDRL, blood sugar, chest and cervical spine radiographs, myelography, CSF examinations done were all normal. All the patients showed normal sensory nerve conduction study. Six patients involving seven nerves showed prolongation of motor distal latency grea- ter than 2Y/2 SD. The range for the median nerve from wrist to APB was 3-5 to 5 9 ms. (N + SD = 3-5 + 0 5 ms); and for the ulnar nerve from wrist to ADM, it was 3-2 to4-9ms(N + SD = 3-1 0.7 ms).All the motor nerve conduction studies was nor- mal. The range for the elbow to wrist seg- ment of the median nerve was 48 to 67 m/s (N SD = 58-6 4.2); and 52 to 71 ms (N SD = 56.8 4.9) for the same seg- ment of the ulnar nerve. Electromyography showed a neuropathic picture in all with varying combinations of fibrillation, posi- tive sharp wave, giant motor units, and iso- lated interference pattern.