PATIENT SYMPTOMS :- AGE 30 YEARS OLD UNABLE TO WALK SEVERE LOW BACK PAIN RIGHT LOWER LIMB SEVERE PAIN, TINGLING SENSATION AND HEAVINESS MRI :- L5 PARS INTERARTICULARIS DEFECT / L5 PARS LYSIS WITH L5-S1 DISC PROLAPSE WITH ANTEROLISTHESIS WITH SEVERE CANAL STENOSIS WITH SEVERE NERVE ROOT COMPRESSION SURGERY :- L5-S1 DISCECTOMY WITH DECOMPRESSION LAMINECTOMY WITH POSTERIOR SPINAL FIXATION / FUSION WITH INTERBODY CAGE – MICROSCOPIC SPINE SURGERY / SUCCESSFUL SPINE SURGERY PROCEDURE :- L5-S1 LEVEL FIXED WITH TITANIUM SCREWS AND RODS AND LISTHESIS CORRECTED. L5-S1 LEVEL LAMINECTOMY, DISCECTOMY DECOMPRESSION DONE AND NERVE ROOTS FREED. COMPLETE DISC IS REMOVED AND INTERBODY TITANIUM CAGE / ARTIFICIAL DISC IS FIXED IN L5-S1 LEVEL. RESULT – PATIENT IS WALKING COMFORTABLY WITH BELT FROM NEXT DAY OF SURGERY SITTING COMFORTABLE NO PAIN IN LEGS NO TINGLING SENSATION IN LOWER LIMB DISCHARGE IN 2 DAYS EXERCISES CONTINUE #SUCCESFUL SPINE SURGERY #LUMBAR SPINE SURGERY # LOW BACK SURGERY # LUMBAR DISC PROLAPSE # LUMBAR CANAL STENOSIS SURGERY # NERVE ROOT COMPRESSION TREATMENT #SPINE FIXATION # SPINE FUSION #PARS LYSIS # PARS INTERARTICULARIS DEFECT