Treatment of Thoracic Spine Pain Radiating to Posterior Shoulder and Arm

Initial Clinical Assessment

The American College of Radiology recommends screening for red flags immediately to determine if urgent imaging or intervention is needed, including age >65 years, chronic steroid use, or known osteoporosis, which indicates a compression fracture risk 1, 3
Patients with a history of cancer, unexplained weight loss, or constant pain should be screened for malignancy concern 4, 3
Fever, recent infection, immunosuppression, or IV drug use may indicate infection/abscess 4, 3
Myelopathy signs, such as spasticity, hyperreflexia, positive Babinski, and bladder dysfunction, should be identified 2
Progressive motor weakness or sensory deficits in dermatomal distribution should be assessed 2

The American College of Radiology recommends first-line management for 4 weeks, including conservative treatment without imaging, as this presentation represents thoracic radiculopathy that is typically self-limiting and responsive to non-surgical treatment within 4 weeks 1, 2
Imaging should not be ordered during the initial 4-week period unless red flags develop, as thoracic disc abnormalities are common in asymptomatic patients and imaging provides no clinical benefit for uncomplicated radiculopathy 1, 2

If symptoms persist beyond 4 weeks or worsen, proceed with MRI thoracic spine without contrast as the imaging study of choice, which can identify disc herniations, nerve root compression, spinal stenosis, and facet arthropathy 2, 3
Thoracic disc herniations occur in 76% of symptomatic cases with midback pain, often calcified, typically in patients aged 30-50 years 2, 3

The American College of Radiology recommends immediately obtaining MRI without contrast if myelopathy develops, including spasticity, hyperreflexia, gait disturbance, and bladder dysfunction 2
Progressive neurologic deficits that emerge during conservative treatment require immediate attention 2
MRI with and without contrast should be ordered if red flags for malignancy or infection develop at any point 4, 3
Surgery is indicated only for severe intractable pain or progressive/severe myelopathy, and thoracic radiculopathy requiring surgery is rare (1-2% of all discectomies) 2