fig1

Figure 1. Original drawing from the article by A.C. Slooff from 1977, obtained with permission from Clinical Neurology and Neurosurgery^[14]. (1) Stump neuroma; (2) opening of the epineurium after resection of the neuroma; (3) the individual fascicles with surrounding perineurium; (4) separation of the fascicles; (5) CCA by an end-to-end interfascicular suture; (6) CCA with an interposed graft; (7) this graft can also be created after end-to-end connection (5) and subsequently transecting and directly repairing one of the fascicles in its proximal segment (7).