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The Journal of Bone & Joint Surgery British Volume
Vol. 86-B, Issue 1 | Pages 70 - 73
1 Jan 2004
Hattori Y Doi K Dhawan V Ikeda K Kaneko K Ohi R

The purpose of this study is to investigate the diagnostic value of evoked spinal cord potentials (ESCPs) and choline acetyltransferase (CAT) activity during exploration of injuries to the brachial plexus. We assessed 25 spinal roots in 19 patients. The results of the two investigations were consistent in all except two roots. Although assessment of ESCPs is easy and quick, it mainly records the nerve potentials along the sensory pathway. Although measurement of CAT activity needs a specimen of the nerve and the availability of a radioisotope laboratory, it gives direct information regarding the motor function of ventral spinal roots. These two techniques should be complementary to each other in order to achieve a more accurate diagnosis.


The Journal of Bone & Joint Surgery British Volume
Vol. 80-B, Issue 1 | Pages 117 - 120
1 Jan 1998
Doi K Hattori Y Kuwata N Soo-Heong T Kawakami F Otsuka K Watanabe M

One pattern of injury to the brachial plexus shows recovery of the fifth and sixth cervical nerves but little else. These patients have useful shoulders and functional elbow flexion, but elbow and wrist extension is weak or absent. Their hand function is negligible.

We restored hand function in three such patients using free functioning muscle transfer for finger flexion and transfer of the sensory rami of the intercostal nerve to the ulnar nerve for sensation. Supplementary operations to restore elbow and wrist extension were necessary in one patient.