Neurodynamic Moblization Versus Mulligan on Pain and Functional Abilities in Patients With Chronic Discogenic Sciatica

Inclusion Criteria: * All the patients diagnosed as lumbar radiculopathy (L5-S1) for at least six months. Diagnosis was confirmed by physical, neurological examination (motor assessment, sensory assessment, reflexes) and radiological assessment (CT or MRI). * All patients has second grade of disc bulge which will detect from T2 axial view of MRI according to Fardon and Milette * All patients has unilateral radiculopathy and pain in the distribution of scaitic nerve. * The age of the patients will range from 35 to 50years . Their body mass index will range between( 22-25) Exclusion Criteria: * Bilateral and multilevel disc prolapse or bilateral radtadiating pain * acute pain (pain less than three months). * Presence of active infection in lumbar spine. * Any other spinal deformities. * Postoperative cases. * Cauda equine lesion. * Neoplasmic. * Spinal stenosis. * Mechanical low back pain. * Failed back syndrome.