Morphological Variations in Formation of Lumbarplexus and its Clinical Significance

Introduction: Lumbar plexus (LP) is one of the main nervous pathways supplying the lower limb which Frequently shows variations. Looking for the applied significance of lumbar plexus in form of its involvement in various injuries direct, indirect or iatrogenic and entrapment. Tubbs et al (1) referred lumbar plexus as No mans land because of relative inaccessibility of this region and there is infrequency in operating on retroperitoneal structures by neurosurgeons. Material and Methods: The study was conducted on 22 (18 male and 4 female) formalin fixed cadavers used for undergraduate dissection in Department of Anatomy, Osmania Medical College, Koti, Hyderabad, Telangana. Thorough dissection was performed to observe the formation of branches of lumbar plexus and measurements were taken from bony land marks. Results: Post fixation of lumbar plexus was found in one cadaver unilaterally. Ilioinguinal and Iliohypogastric nerve were arising from common stem in 10 % and separately at level of (L1) in 90 %.