ConditionBones, joints & muscles
Radiculopathy (Pinched Nerve Root)
Radiculopathy is irritation or compression of a nerve root where it leaves the spinal cord, commonly called a pinched nerve. It causes pain that radiates along the nerve, plus numbness, tingling or weakness in the arm, leg or chest wall that nerve supplies. It most often affects the lower back (lumbar radiculopathy, or sciatica) and neck (cervical radiculopathy). Herniated discs and age-related narrowing of the spine are the usual causes. Most people improve within 6 to 12 weeks without surgery.
Also called: Pinched nerve, nerve root compression, radicular pain, sciatica (lumbar form), nerve root injury
At a glance
- What it is
- A compressed or inflamed spinal nerve root.
- Types
- Cervical (neck to arm), thoracic (chest wall band), lumbar and sacral (back to leg).
- Causes
- Herniated disc, bone spurs, spinal stenosis, spondylolisthesis; rarely infection or tumor.
- Symptoms
- Shooting pain along a limb, numbness, tingling, weakness, reduced reflexes.
- Treatment
- Activity, NSAIDs, physical therapy, steroid injections; surgery for persistent or severe cases.
When to get help
Call 911 or go to the ER
- Numbness in the saddle area (genitals, buttocks, inner thighs), new difficulty urinating, or loss of bowel control (possible cauda equina syndrome)
- Weakness or numbness in both legs, or progressive weakness over hours to days
- Back or neck pain after major trauma
See a doctor within a day or two
- Back or neck pain with fever, unexplained weight loss, a history of cancer, IV drug use or a weakened immune system
- Foot drop or significant new weakness in an arm or leg
- Severe pain not controlled by medicine
Book a routine appointment
- Shooting arm or leg pain with numbness that is not improving after 6 weeks
- Recurrent episodes of sciatica
Usually safe to manage at home
- Back pain with mild leg pain or tingling and no weakness, improving over days to weeks with activity
How radiculopathy happens
Each spinal nerve root exits through an opening between vertebrae (the foramen). A bulging or ruptured disc, bone spurs, thickened ligaments or a slipped vertebra can narrow this space. Pressure plus chemical inflammation from disc material irritates the root, producing pain and nerve dysfunction in a predictable area of skin (dermatome) and muscles (myotome).
Types of radiculopathy
| Type | Common levels | Symptoms |
|---|---|---|
| Cervical radiculopathy | C6, C7 | Neck pain spreading to shoulder, arm and fingers; arm weakness |
| Thoracic radiculopathy | T1 to T12 | Band-like pain around the chest or abdomen; often from shingles or diabetes, rarely disc |
| Lumbar radiculopathy | L4, L5, S1 | Low back pain spreading down the leg into the foot (sciatica) |
Lumbar nerve roots and their effects
| Root | Pain and numbness | Weakness | Reflex |
|---|---|---|---|
| L4 | Front of thigh to inner shin | Knee straightening | Knee jerk reduced |
| L5 | Outer leg, top of foot, big toe | Lifting the foot and big toe (foot drop) | Usually normal |
| S1 | Back of calf, sole and outer foot | Pushing off on toes | Ankle jerk reduced |
Causes
- herniated disc: most common under 50
- spinal stenosis and foraminal narrowing from arthritis: common over 50
- degenerative disc disease
- spondylolisthesis: one vertebra slipping forward on another
- less common: shingles, diabetes (diabetic radiculopathy), tumors, infection, inflammatory arthritis, trauma
Symptoms
- sharp, burning or electric pain radiating along an arm or leg, often worse than the back or neck pain
- numbness or tingling in a specific pattern
- muscle weakness
- reduced reflexes
- pain worse with coughing, sneezing or sitting (lumbar), or with neck movements (cervical)
Radiculopathy vs peripheral neuropathy
Radiculopathy usually affects one side and one nerve root pattern, often with back or neck pain. Peripheral neuropathy usually affects both feet or hands symmetrically in a "stocking-glove" pattern, starting in the toes, without spinal pain.
Diagnosis
- history and examination of strength, sensation and reflexes
- straight-leg raise test for lumbar radiculopathy; Spurling test for cervical
- MRI: recommended if symptoms persist beyond 6 weeks, if there are red flags, or before injections or surgery; many people without symptoms also show disc bulges, so findings must match symptoms
- EMG and nerve conduction studies to confirm root involvement or distinguish from neuropathy
Treatment
Conservative care
About 9 in 10 people improve without surgery.
- stay active: walking and gentle movement; avoid prolonged bed rest
- NSAIDs such as ibuprofen or naproxen at the label dose; acetaminophen (paracetamol) as an alternative
- heat or cold
- physical therapy: core strengthening, nerve gliding, posture and directional exercises
- short course of oral steroids in some cases
- nerve pain medicines such as gabapentin have limited evidence for sciatica
Injections
Epidural steroid injections can provide short-term relief of radiating pain, helping people stay active while healing occurs.
Surgery
Surgery is considered for:
- cauda equina syndrome or spinal cord compression (urgent)
- progressive or severe weakness
- severe pain that persists despite 6 to 12 weeks of conservative care
Common operations are microdiscectomy for a lumbar disc, laminectomy or foraminotomy for stenosis, and anterior cervical discectomy and fusion or disc replacement in the neck. Surgery relieves leg or arm pain faster than conservative care, though long-term results are often similar.
Outlook
Most radiculopathy from disc herniation improves within weeks to a few months as the disc material shrinks and inflammation settles. Numbness may last longer than pain. Recurrence is possible, and regular exercise and core strength help prevent it.
Frequently asked questions
What are the symptoms of radiculopathy?
Typical symptoms are pain that shoots down an arm or leg, along with numbness, tingling or weakness in a specific area supplied by the affected nerve root. Neck or back pain often accompanies it. Coughing or certain movements may worsen the pain.
What is the difference between radiculopathy and sciatica?
Sciatica describes pain radiating along the sciatic nerve in the buttock and leg. It is usually caused by lumbar radiculopathy at the L5 or S1 nerve roots. Radiculopathy is the broader term for any compressed spinal nerve root, including in the neck.
How long does radiculopathy take to heal?
Most cases improve significantly within 6 to 12 weeks with conservative treatment. Some take several months. Persistent symptoms beyond 3 months, or worsening weakness, may need further investigation and treatment.
When is surgery needed for a pinched nerve?
Surgery is needed urgently for cauda equina syndrome or spinal cord compression. It is also considered for progressive weakness or severe pain that does not improve after 6 to 12 weeks of non-surgical treatment.
Sources
This guide was written from current patient and clinical guidance, including:
- North American Spine Society: Clinical guidelines for diagnosis and treatment of lumbar disc herniation with radiculopathy
- American Academy of Orthopaedic Surgeons (OrthoInfo): Herniated disk in the lower back
- American College of Physicians: Noninvasive treatments for acute, subacute and chronic low back pain
- NHS: Sciatica
- MedlinePlus: Herniated disk