What is Thoracic Myelopathy?
Thoracic myelopathy is a clinical syndrome resulting from compression or injury of the spinal cord within the thoracic spine. Unlike cervical myelopathy, which affects arm and leg function, thoracic myelopathy primarily affects the legs and, in more advanced cases, bladder and bowel function, because the thoracic cord carries the nerve pathways to and from the lower body.
It is not a single diagnosis but a final common pathway for several underlying thoracic conditions, including OLF, disc herniation, spinal stenosis, tumours, and fractures, all of which can compress the cord from different directions.
This overview page exists to help patients and referring doctors understand the pattern of symptoms that should trigger thoracic spine evaluation, even when back pain is minimal.
Recognising Thoracic Myelopathy
The key symptoms to recognise are:
- Progressive leg weakness or heaviness, often described as legs feeling “like lead”
- Unsteady or stiff walking, especially on uneven ground or stairs
- Sensory disturbance in the legs or around the trunk, tingling, numbness, or a tight band sensation
- Bladder urgency, hesitancy, or incontinence
- Back pain – may be absent or mild even with severe cord compression
The absence of significant back pain does not rule out serious thoracic spinal cord compression. This is one of the most important reasons this condition is missed.
When to Seek Specialist Assessment
Seek prompt evaluation if you or a patient has:
- Progressive leg weakness over weeks or months
- New bladder or bowel symptoms combined with leg changes
- A history of known spine pathology with new neurological symptoms
- Sudden worsening of walking ability after a minor fall or injury
MRI of the thoracic spine is the key investigation and should not be delayed when myelopathy is suspected.
Self-Check at Home
The Five-Question Thoracic Myelopathy Screen: Answer yes or no to each:
- Have your legs felt progressively weaker or heavier over the past 6 to 12 months?
- Do you find walking on uneven ground, sand, or in the dark more difficult than before?
- Has anyone noticed a change in the way you walk (stiff, wide-based, or unsteady gait)?
- Do you have any new urgency or difficulty with bladder control?
- Is there any area of your legs or trunk that feels numb or like it is wearing a tight stocking?
Two or more “yes” answers, particularly in a middle-aged or older adult without a clear alternative explanation, warrants urgent MRI of the thoracic spine.
Motion-Preserving Considerations
Decompression without fusion is the guiding principle for thoracic myelopathy wherever stability allows, preserving thoracic mobility and reducing surgical complexity and recovery burden.
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.
