Figure 3.

Neuromorphology of the median nerve in the rat model of total brachial plexus injury with cC7 root transfer to the lower trunk or the median nerve (toluidine blue staining, 400× magnification)

Group A: cC7 root transfer to the lower trunk via the prespinal route; Group B: cC7 root transfer to the median nerve via subcutaneous tunnel; Group C: sham operation. The total number of myelinated fibers in the median nerve in both groups A and B increased with time postoperatively. cC7: Contralateral C7.