[Figure ID: F7]Figure 7
View from the axilla. The pectoralis muscle (P) is cut from its humeral insertion and retracted medially to expose the distal brachial plexus. At this level, the posterior cord has recently bifurcated into the axillary and radial nerves. The other elements of the brachial plexus are looped in ¼-inch Penrose drains and retracted to expose these nerves (also depicted in the inset in Figure 6a). The nerves are stimulated to confirm their identity and then intraneural dissection is undertaken to find the appropriate donor and recipient fascicles