The Sciatic Nerve
The patient is positioned prone. The X denotes the posterior superior iliac spine.
The incision is marked following lateral aspect of buttock superiorly and inferiorly along the midline of the thigh.
The skin and subcutaneous tissue is divided, fibers of gluteus maximus become visible moving in the medial to inferolateral direction.
The sciatic nerve exits caudal to the inferior border of gluteus maximus.
Long head of biceps femoris retracted medially. Sciatic nerve is encircled with vessel loop.
The sciatic nerve coursing between long head of biceps femoris and semitendinosus muscle.
Muscular Branches of Sciatic Nerve
Biceps Femoris muscle travelling medial to lateral across the sciatic nerve encircles with vessel loop
The sciatic nerve divides into tibial and common peroneal nerve. This division is most often seen at the distal third of the thigh. The sciatic nerve also commonly divides at its sciatic notch and travels as divided nerve.
Tibial and Common Peroneal Nerve both divide to supply branches that combine to form the sural neve
