End-to-side neurorrhaphy is a great option for several treatments, mainly because it does not cause damage to the donor nerve. Viterbo studied and developed the technique, creating four types of end-to-side neurorrhaphies: direct suture with the epineurium window, direct suture without the epineurium window, embracing technique, and onlay suture technique. The most important tip is to create pressure between the nerves, where the recipient nerve slightly compresses the donor nerve.