Thoracic Disc Herniation
A herniated disc in the mid-back region, which can compress the spinal cord
ICD-10: M51.14 · thoracic condition
Thoracic disc herniation (TDH) occurs when the inner material of an intervertebral disc in the thoracic (middle) spine pushes through its outer layer, potentially compressing the spinal cord or nerve roots. The thoracic spine — T1 through T12 — accounts for only about 0.25–0.75% of all disc herniations, compared to the much more common lumbar and cervical herniations. This relative rarity means the condition is frequently misdiagnosed as a cardiac or visceral problem when it presents with chest or abdominal symptoms. Thoracic disc herniations are clinically significant because the thoracic spinal canal is narrow and leaves little room for the spinal cord, meaning even a modest herniation can cause myelopathy — compression of the cord itself — rather than just radiculopathy.
75%
Thoracic disc herniations account for only 0.25–0.75% of all disc herniations, making them significantly rarer than lumbar (90%) or cervical (8%) herniations.
Quint U et al., European Spine Journal (2012)15–20%
Approximately 15–20% of thoracic disc herniations are symptomatic; the remainder are incidental findings on MRI performed for other reasons.
Wood KB et al., Journal of Bone and Joint Surgery (1995)Symptoms
- Mid-back pain — often described as band-like tightness around the chest or abdomen
- Chest or rib pain that mimics cardiac or pleuritic conditions
- Leg weakness, numbness, or spasticity if the spinal cord is compressed (myelopathy)
- Balance and gait difficulties — clumsiness when walking
- Bowel or bladder dysfunction in severe cases (late finding)
- Intercostal neuralgia — pain radiating around the chest or abdomen following a dermatomal pattern
- Hyperreflexia and positive Babinski sign on neurological examination in myelopathic cases
Causes & Risk Factors
- Degenerative disc disease — the most common cause in middle-aged and older adults
- Trauma — acute thoracic disc herniation can follow a fall or significant impact
- Thoracic disc calcification — calcified herniations are more common in the thoracic spine than elsewhere
- Congenital spinal canal narrowing that reduces tolerance for even small herniations
Treatment Options
Conservative
- Physical therapy — core stabilization and postural correction
- NSAIDs and analgesics for pain management
- Thoracic epidural steroid injections for radiculopathy without cord compression
- Activity modification — avoiding heavy lifting and rotational movements
Surgical
- Thoracoscopic disc excision — minimally invasive approach via the chest; preferred for central herniations
- Costotransversectomy — removal of rib and transverse process to access the disc laterally
- Lateral extracavitary approach — for large calcified herniations
- Posterior approaches (laminectomy) — generally avoided for central TDH due to cord manipulation risk
When to see a spine specialist
Seek urgent evaluation if you have mid-back pain combined with leg weakness, balance problems, bladder dysfunction, or sensory changes in the legs — these suggest spinal cord compression requiring prompt imaging and possible surgical decompression. Band-like chest or abdominal pain without an identified cardiac, pulmonary, or abdominal cause should also prompt evaluation with thoracic spine MRI.
Specialists Who Treat Thoracic Disc Herniation
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Search spine specialists →Frequently Asked Questions
How is a thoracic disc herniation different from a lumbar herniation?
The location is the key difference — thoracic herniations occur in the mid-back (T1–T12) versus the lower back. Because the thoracic spinal canal is narrower than the lumbar canal, and the thoracic spinal cord is more vulnerable than the lumbar cauda equina, even small thoracic herniations can cause myelopathy (spinal cord dysfunction). Lumbar herniations typically cause radiculopathy (nerve root pain) rather than cord injury. Thoracic herniations are also much rarer, accounting for less than 1% of all disc herniations.
Why do thoracic disc herniations cause chest pain?
Each thoracic nerve root runs along the underside of a rib (intercostal nerve), following a specific dermatomal band around the chest or abdomen. When a disc herniation compresses one of these roots, pain follows that band — causing a characteristic tightening or burning sensation that wraps around the chest or abdomen. This pattern is easily confused with pleurisy, costochondritis, or cardiac pain, which is why thoracic disc herniation is frequently misdiagnosed before spinal imaging is obtained.
Is surgery always needed for a thoracic disc herniation?
No. The majority of thoracic disc herniations causing only pain (without myelopathy or significant radiculopathy) can be managed conservatively with physical therapy and pain management. Surgery is recommended when there is evidence of spinal cord compression with neurological deficits — weakness, spasticity, balance problems, or bowel/bladder dysfunction — or when conservative care has failed for severe, refractory pain. The surgical approach must be carefully planned because posterior (back-approach) surgery risks worsening cord compression when accessing central herniations.