The Journal of hand surgery, European volume
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J Hand Surg Eur Vol · Oct 2000
Case ReportsUltrasonography in the diagnosis of ulnar tunnel syndrome caused by an occult ganglion.
We report a case of ulnar tunnel syndrome caused by an occult ganglion which was diagnosed preoperatively by ultrasonography.
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J Hand Surg Eur Vol · Oct 2000
The diagnostic value of intraoperative measurement of choline acetyltransferase activity during brachial plexus surgery.
We used the measurement of choline acetyltransferase (CAT) activity to distinguish between preganglionic and postganglionic injuries of the spinal roots during brachial plexus surgery. This study includes ten spinal roots in six patients with traumatic brachial plexus injuries. ⋯ Whereas CAT activity in fascicles in preganglionic injured roots was below 500 cpm, it was above 2000 cpm in postganglionic injured roots. This study shows that intraoperative measurement of CAT activity can provide useful information on the site and severity of brachial plexus injuries and the assessment of the motor function status of the injured spinal root, both directly and quantitatively.