Sciatic nerve regeneration in the rat after frozen muscle grafting. A comparative study using somatosensory evoked...

In an experimental study, somatosensory evoked potentials were used to evaluate sciatic nerve regeneration in the rat after 12 mm-long conventional nerve grafting, vascularized nerve grafting and frozen muscle grafting. This experimental method was found to be technically easy and highly reproducible. No statistical difference was found between the three groups concerning amplitude of the negative electrical wave recorded at the cortex level after distal stimulation. Conduction velocities were found to be significantly higher in both the vascularized nerve group and the frozen muscle group, compared with the conventional nerve grafting group. The frozen muscle grafting technique is valuable as it gives good experimental results, is easy to carry out and causes minimal damage to the donor site.