Regional anatomy and clinical analysis of injured sciatic nerve in diagnosis and treatment

Objective To discuss the diagnosis and treatment of the injured sciatic nerve.Methods The size and length of lumbar foramen intervertebral,the caliber of the spinal nerve root and the place of sciatic nerve going out from the pelvis of the 15 adult(30 sides) corpses were observed and measured.Results The size of the foramen intervertebral shrinked from the top downward,that is L1(11.65±1.55) mm,L5(9.98±1.57) mm,and the length increased as this:L1(6.84±1.35) mm,L5(11.17±1.77) mm.the length of lumbar nerve and sacral nerve root from the starting point to the intervertebral foramen gradually increased,L1(8.10±2.60) mm,S1(23.80±3.11) mm.The diameter of nerve root became bigger from top downward.The sciatic nerve going out from the pelvis of 2 corpse(4 sides) were anomaly.Conclusion The sciatic nerves could be involed by the oppression between the initiation and buttocks.