Thoracic Spine · T1–T12
Thoracic Spine Conditions
The Mid-Back · Where Thoracic Stenosis and Thoracic Radiculopathy Most Commonly Develop
Medically reviewed by Samia Ghaffar, MD · Board-Certified Orthopaedic Spine Surgeon · Program Director, UCSF Fresno Orthopaedic Surgery Residency · Last reviewed: November 3, 2026
Overview
About the Thoracic Spine
The thoracic spine is the middle portion of the spine, consisting of 12 vertebrae (T1–T12) that connect to the ribs and form part of the thoracic cage. Because of this connection, the thoracic spine is more stable and less mobile than the neck or lower back, making degenerative conditions less common. When thoracic spine disorders occur, symptoms may include localized back pain, band-like pain around the chest or abdomen, numbness, or other neurological changes. Because these symptoms can overlap with conditions affecting the ribs, chest wall, or internal organs, careful evaluation and appropriate imaging are important for identifying the cause.
Seeking Care
When to See a Spine Specialist for Thoracic Symptoms
A spine specialist evaluation is appropriate when symptoms may originate from the thoracic spine and have not improved with appropriate conservative care.
Specifically, evaluation is recommended when:
- Mid-back pain persists beyond several weeks despite non-surgical treatment.
- Sharp, burning, or band-like pain wraps around the chest wall or upper abdomen.
- Imaging obtained by a primary care physician or in the emergency department identifies a thoracic disc herniation or thoracic spinal stenosis.
- You would like a second opinion before proceeding with spine surgery that has been recommended elsewhere.
Symptoms warranting prompt evaluation — possible spinal cord compression:
- New or progressive weakness, numbness, or loss of coordination in one or both legs.
- Difficulty with balance, walking, or frequent falls.
- New bowel or bladder dysfunction.
- Hyperactive reflexes or other signs of spinal cord dysfunction identified during a neurological examination.
These findings may indicate thoracic myelopathy, a condition caused by compression of the spinal cord. Because conservative treatment cannot relieve spinal cord compression, timely evaluation is important to determine whether surgical decompression is appropriate.
Anatomy
The Thoracic Spine
Anatomy at a glance:
Twelve vertebrae
Labeled T1 through T12, stacked between C7 and L1.
Connection to the rib cage
Each thoracic vertebra articulates with a pair of ribs, creating a stable, low-motion segment of the spine.
The thoracic spinal cord
Runs inside the thoracic spinal canal. Each pair of thoracic nerve roots exits the spine and supplies a band of skin and muscle that wraps around the chest wall and upper abdomen.
Intervertebral discs
Located between each pair of thoracic vertebrae and function as cushions that absorb stress and allow movement between spinal segments. Compared with lumbar discs, thoracic discs are generally thinner and experience less motion because of the stabilizing effect of the rib cage.
Limited motion, limited load
The thoracic spine is the most stable and least mobile section of the spine. That combination is why thoracic degenerative conditions are uncommon.
Please Note: Symptoms of a thoracic condition usually do not stay localized to the mid-back.
Conditions
Conditions of the Thoracic Spine
Thoracic Spinal Stenosis
Thoracic spinal stenosis is narrowing of the spinal canal in the mid-back, most commonly due to age-related changes. Although less common than cervical or lumbar stenosis, it can compress the spinal cord and cause thoracic myelopathy, with symptoms such as leg weakness, numbness, balance or walking difficulties, and, in advanced cases, bowel or bladder dysfunction.
Thoracic Radiculopathy
Thoracic radiculopathy occurs when a nerve root in the mid-back is compressed or irritated, most commonly by a herniated disc or degenerative narrowing. Symptoms typically include sharp, burning, or band-like pain wrapping around the chest or upper abdomen along the affected nerve. Because these symptoms can resemble heart, lung, or abdominal conditions, diagnosis can be challenging.
Side by Side
How These Conditions Compare
| Comparison | Thoracic Stenosis | Thoracic Radiculopathy |
|---|---|---|
| What it is | Narrowing of the thoracic canal | A pinched nerve root in the mid-back |
| Typical pain pattern | Variable. May be little or no pain until narrowing compresses the spinal cord and neurological symptoms develop | Sharp or burning pain wrapping around the chest wall along one nerve distribution |
| Limbs typically affected | Legs if cord is involved | None directly; symptoms travel along the affected nerve around the chest or abdomen |
| First-line treatment | Surgical evaluation when cord compression is symptomatic and progressing | Activity modification, NSAIDs, physical therapy |
| Urgency | Higher urgency when cord compression is causing symptoms; not reversed by conservative care | Usually not emergent; progressive weakness or cord involvement warrants prompt evaluation |
Common Questions
Frequently Asked Questions
The thoracic spine is the middle region of the spine, consisting of twelve vertebrae (T1–T12) located between the cervical spine (neck) and the lumbar spine (lower back). Each thoracic vertebra articulates with a pair of ribs, forming the framework of the rib cage.
The thoracic spine is stabilized by the rib cage, moves less than the cervical and lumbar regions, and is subjected to different mechanical forces. Its intervertebral discs are also thinner than those in the lower back. Together, these anatomical features reduce the repetitive stresses that contribute to degenerative spine disease, which is why thoracic spinal stenosis and thoracic disc herniation are much less common than similar conditions in the neck or lower back.
Yes—but typically only when the spinal cord is compressed. A smaller thoracic disc herniation that affects a thoracic nerve root usually causes thoracic radiculopathy, producing sharp, burning, or band-like pain that wraps around the chest wall or upper abdomen. In contrast, a larger disc herniation that compresses the thoracic spinal cord can cause thoracic myelopathy, leading to leg weakness, numbness, balance difficulties, or changes in walking. These symptoms occur because the spinal cord contains the nerve pathways that carry signals between the brain and the body below the level of compression
Diagnosis begins with a thorough medical history and neurological examination, followed by appropriate imaging. Because thoracic spine disorders are relatively uncommon and their symptoms can resemble conditions affecting the heart, lungs, chest wall, abdomen, or surrounding muscles, imaging is often needed to confirm a thoracic source. MRI of the thoracic spine is the preferred imaging study because it provides the best evaluation of the spinal cord, nerve roots, discs, and other soft tissues.
No. Most thoracic spine conditions improve with conservative treatment and do not require surgery. Thoracic radiculopathy is usually managed with non-surgical measures such as activity modification, medications, and physical therapy. The exception is thoracic myelopathy, which results from compression of the spinal cord. Because conservative treatment cannot relieve spinal cord compression, surgery is often recommended for patients with symptomatic myelopathy to decompress the spinal cord and help prevent further neurological decline.
Clarity Starts With the Right Evaluation.
Whether you’re seeking answers about a spinal condition, exploring options after unsuccessful conservative treatment, or considering surgery and want a second opinion, Dr. Ghaffar offers a thoughtful, comprehensive approach to your care.
By carefully reviewing your imaging, understanding your symptoms, and considering your individual goals, he helps you gain a clearer understanding of your condition and the treatment options available to you.
Expert insight. Personalized guidance. Confidence in your next step.