Surgical treatment for revision of lumbar disc herniation

Objective To study the pathological charge and the clinical characteristics of image of recurrent lumbar disc hemiation Methods 12 cases of the recurrent lumbar disc herination were treated with surgery. The spinal cannal was entered through the primary site of expose the nerve root orifices were enlarged and the residual of the nucleus pulposus was resected and the adhesions of nerve roots released. Results The follow-up period lasted in average of 4.6 years in all cases. 6 cases got excellent result,2 cases good and 2 fair. Conclusion The principal cause of recurrence was too much residual of nucleus pulposus. MRI had superiority to the other imaging methods; during re-operation the denatured protrusion of the intervertebal disc tissues must be excised completely and the nerve root cannal stenosis totally released.