Radiculopathy
Pain or numbness that travels along a nerve from a pinched spinal root
Quick Facts
- Type: Spinal nerve condition
- Common causes: Herniated disc, bone spurs, spinal narrowing
- Typical areas: Neck (arm) or lower back (leg)
- Outlook: Often improves with conservative care
Overview
Radiculopathy refers to symptoms that occur when a nerve root, the point where a spinal nerve exits the spine, becomes compressed or irritated. Because each nerve root carries signals to and from a specific region of the body, the pain, numbness, tingling, or weakness tends to follow a predictable path along that nerve.
The condition is named for where it occurs. Cervical radiculopathy affects the neck and travels into the shoulder, arm, or hand. Lumbar radiculopathy, often called sciatica when it involves the sciatic nerve, affects the lower back and travels into the buttock and leg. Thoracic radiculopathy, which involves the mid-back, is less common. Most cases improve with non-surgical care over weeks to months.
Symptoms
Symptoms depend on which nerve root is affected but generally radiate away from the spine along the nerve's path:
- Sharp, burning, or electric-like pain shooting into an arm or leg
- Numbness or a pins-and-needles sensation in part of the limb
- Muscle weakness in the affected area
- Pain that worsens with certain movements, coughing, or sneezing
- Reduced reflexes in the affected limb
In cervical radiculopathy, symptoms travel into the arm or hand; in lumbar radiculopathy, they travel into the buttock, leg, or foot.
Causes
Radiculopathy results from anything that presses on or irritates a nerve root as it leaves the spine:
- Herniated disc: A bulging or ruptured spinal disc that pushes on a nearby nerve root.
- Bone spurs: Bony overgrowths from arthritis that narrow the openings nerves pass through.
- Spinal stenosis: Narrowing of the spaces in the spine that crowds the nerve roots.
- Degenerative disc disease: Age-related wear that reduces disc height and space for nerves.
Less commonly, injury, infection, tumors, or diabetes-related nerve changes can produce similar symptoms.
Risk Factors
- Older age, with more spinal wear and tear
- Jobs or activities involving heavy lifting, twisting, or repetitive motion
- Prolonged sitting or poor posture
- Being overweight
- Smoking, which can speed disc degeneration
- A family history of spine problems
Diagnosis
Diagnosis combines a clinical exam with imaging and, sometimes, nerve testing:
- Physical and neurological exam: Checking strength, reflexes, sensation, and which movements reproduce the pain.
- MRI: The most useful test to show discs, nerve roots, and soft tissue compression.
- CT scan or X-ray: To assess bone spurs, alignment, and narrowing.
- Electromyography (EMG) and nerve conduction studies: To confirm which nerve root is affected and rule out other nerve problems.
Treatment
Most people improve without surgery. Treatment usually starts conservatively:
- Rest and activity modification: Avoiding movements that worsen pain while staying as active as tolerated.
- Medications: Anti-inflammatory drugs for pain, and sometimes short courses of other medicines for nerve-related pain or muscle spasm.
- Physical therapy: Exercises to relieve pressure on the nerve, build supporting muscles, and improve posture.
- Epidural steroid injections: Targeted anti-inflammatory injections for persistent pain.
- Surgery: Considered when there is severe or worsening weakness, or pain that does not respond to conservative care, to relieve pressure on the nerve root.
Prevention
- Use good lifting technique, bending at the knees and keeping loads close to your body
- Maintain good posture when sitting and standing
- Stay physically active and strengthen core and back muscles
- Keep a healthy weight
- Avoid smoking, which harms disc health
- Take breaks from prolonged sitting
When to See a Doctor
See a doctor if pain, numbness, or weakness travels down an arm or leg and does not improve within a few weeks, or interferes with daily life. Seek emergency care right away if you have:
- Sudden, severe weakness in a limb
- Loss of bladder or bowel control
- Numbness in the groin or inner thighs
- Symptoms following a major injury
These can signal serious nerve compression that needs urgent evaluation.
Frequently Asked Questions
What is the difference between radiculopathy and sciatica?
Sciatica is a specific type of lumbar radiculopathy that affects the sciatic nerve, causing pain down the leg. Radiculopathy is the broader term for symptoms from any pinched spinal nerve root, including those in the neck.
Will radiculopathy go away on its own?
Many cases improve over several weeks to a few months with conservative care such as activity changes, anti-inflammatory medication, and physical therapy. Symptoms that persist or worsen may need injections or, less often, surgery.
What causes a pinched nerve in the spine?
Common causes include a herniated disc pressing on a nerve root, bone spurs from arthritis, and spinal narrowing called stenosis. Age-related disc wear, injury, and repetitive strain can all contribute.
When is surgery needed for radiculopathy?
Surgery is usually considered only when there is severe or worsening muscle weakness, signs of serious nerve compression, or pain that does not respond to weeks of conservative treatment. Most people never need it.
When is radiculopathy an emergency?
Seek emergency care if you have sudden severe limb weakness, loss of bladder or bowel control, or numbness in the groin area. These can indicate serious nerve compression requiring urgent treatment.
References
- American Academy of Orthopaedic Surgeons (AAOS). Cervical and lumbar radiculopathy.
- Mayo Clinic. Herniated disk and pinched nerve.
- National Institute of Neurological Disorders and Stroke (NINDS). Back pain and spinal disorders.
- MedlinePlus, U.S. National Library of Medicine. Radiculopathy.