Pain along the course of the sciatic nerve, usually resulting from nerve root compression in lumbo-sacral spine.
Radiculopathy is the commonest cause of sciatica.
Definition: dysfunction of a nerve root: signs and symptoms may include pain, sensory disturbance, weakness. Usually caused by disc prolapse or degenerative spinal stenosis
- Discitis/ abscess
- Metabolic eg: B12 deficiency
- Herpes Zoster
- Spine tumour
- Hip pathology
- Vascular claudication
- Referred pain of non-spinal origin
- Injection injury from misplaced IM injection
- Pyriformis syndrome (controversial)
- Peripheral neuropathy/ entrapment of nerve