Abstract

The Tibial nerve (TN), also known as posterior tibial nerve, the largest of the two major divisions of the sciatic nerve, is a continuation of the medial trunk of the sciatic nerve, which derives fibers from the ventral divisions of the L5, S1, and S3 roots, these nerves roots share same nerves roots to the detrusor, urinary sphincter, and pelvic floor muscles. Anatomical studies of the TN in the distal third of the leg and at the level ankle began to take more importance with the establishment and definition of course of the TN due to the wide clinical and research purposes of the TN and development of minimally invasive treatment of bladder dysfunction such as Percutaneous Tibial nerve stimulation (PTNS), nerve block and etc. [1,2]. We determined, through dissection of fresh cadaver, the neuroanatomy of the TN and its relation to the other structures at the ankle in relation to the tarsal tunnel.