Study of formation of pelvic somatic nerves

Variations are very commonly found in the formation of nerves. They may be prefixed or post fixed. Variable thickness of neural roots or their absences are also commonly seen. The pelvic nerves lie along the posterior pelvic wall except obturator nerve. The obturator nerve lies along the lateral pelvic wall. Pelvic nerves are present extraperitoneally against the posterolateral walls of pelvis. The somatic nerves of the pelvis include the Lateral Femoral Cutaneous nerve, Femoral nerve, Genitofemoral nerve, Obturator nerve and the Lumbosacral trunk. Variations in the level of roots of these nerves are very commonly seen which are important for surgeons, orthopaedic surgeons and neurosurgeons during different surgeries. . Different types of variations were found in the formation as well as level of division of parietal pelvic nerves which are discussed in the study.