What is Thoracic Disc Herniation?
Thoracic disc herniation occurs when the soft inner core of an intervertebral disc in the mid or upper back ruptures through its outer layer and presses on the spinal cord or nerve roots within the thoracic spine. While far less common than cervical or lumbar disc herniations, it is a clinically significant condition because the thoracic spinal canal is narrow and the spinal cord has limited space, meaning even modest compression can produce serious neurological consequences.
Thoracic disc herniations account for less than 1% of all symptomatic disc herniations, but they must not be overlooked when a patient presents with mid-back pain combined with leg or abdominal symptoms.
Who Gets It and Why?
- Degenerative disc disease – age-related disc breakdown increasing vulnerability to herniation
- Trauma – particularly in younger patients following falls or sports injuries
- Calcified or hard disc herniations – a distinct feature of thoracic herniations, where the disc material hardens over time and is closely adherent to the dura
What Does It Feel Like?
- Mid or upper back pain, sometimes with a band-like quality wrapping around the chest or abdomen
- Leg weakness, heaviness, or spasticity
- Numbness in the legs or a defined sensory level on the trunk
- Bladder or bowel dysfunction in severe cases
- Symptoms often confused with cardiac, pulmonary, or abdominal conditions, leading to delayed diagnosis
How Is It Diagnosed?
- MRI of the thoracic spine is the primary diagnostic tool
- CT scan helps characterise disc calcification and is critical for surgical planning
- Careful clinical examination to establish the neurological level
How Is It Treated?
Mild cases with predominantly pain and no neurological deficit may be managed conservatively with physiotherapy and pain management. However, any evidence of myelopathy, cord compression causing leg weakness, sensory changes, or bladder dysfunction, is an indication for surgical decompression.
Surgical approaches include thoracoscopic (keyhole), lateral extracavitary, or posterior approaches depending on the location and nature of the herniation. Calcified thoracic discs require particular surgical expertise due to their adherence to the spinal cord lining.
Self-Check at Home
The Band-Like Pain Check: Place both hands around your lower chest or upper abdomen and note whether you experience pain that wraps around your body in a band-like pattern. Band-like or girdle pain around the chest or abdomen that cannot be explained by a cardiac, respiratory, or gastrointestinal cause, particularly when accompanied by back pain, is a characteristic symptom of thoracic disc herniation or thoracic nerve root compression.
The Leg Function Check:
- Sit in a chair and attempt to lift each knee alternately, as if marching. Is there any weakness or heaviness in one or both legs?
- Stand on one leg without holding a support. Any unexpected difficulty with balance or leg weakness warrants evaluation.
Unsure about your symptoms? Our free Spine Self Check takes less than two minutes and gives you a clearer picture before your consultation.
Motion-Preserving Considerations For soft thoracic disc herniations at one or two levels without associated instability, decompression without fusion is the goal wherever possible. Thoracoscopic (keyhole) approaches allow minimally invasive disc removal with minimal disruption to the thoracic spine, preserving normal thoracic mechanics
Understanding your symptoms is the first step. If something here sounds familiar, book a consultation with Dr. Namith Rangaswamy or call +91 91081 04114 to get a proper diagnosis.
