What is the Preferred Angle of Traction to Decompress Cervical Nerve Roots?

Inclusion Criteria: * Patients will be included in the study if they have C5-C6 and C6-C7 paramedian disc protrusion manifested by unilateral symptoms in C6-C7 roots dermatome and myotomes of the upper extremities, second grade of disc bulge (2-3mm) which was detected from T2 axial view of MRI, and diagnosed as cervical disc protrusion (C5- C7) for at least three months. Exclusion Criteria: \- Patients will be excluded from the study if they have upper cervical spine disc pathology, cord compression and upper motor neuron symptoms, curvature abnormalities of the neck including reversed curve (kyphotic) and deformities, cervical rib syndrome, double crush syndrome, diabetic neuropathy, text neck, short neck (churchill neck), marked facet joint, neuro-central joint arthropathic pathology, osteoporotic patients.