[Electrophysiologic diagnosis of peripheral nerve lesions].

In the last two decades the surgical treatment of peripheral nerve lesions has improved considerably, mostly because of the introduction of the microsurgical technique. It was not until the introduction of microsurgery that the surgeon was able to achieve restoration at the level of the nerve fasciculi. The simultaneous use of electrophysiological techniques can improve the results of the reconstruction and especially the extent of functional outcome of nerve restoration. Electrophysiological methods allow detailed and objective assessment of the site, extent, and cause of the lesion and are therefore crucial for the decision upon the appropriate therapeutic procedure and for the success of the operation. The aim of the review is the demonstration of: 1. Today's understanding of peripheral nerve function/ 2. The neurophysiological mechanism of denervation and renervation/ 3. The different electrophysiological methods/ 4. The indications and 5. Application of these techniques in the context of reconstructive surgery.