New Research on T4 Syndrome
Originally published: 2025-10-20
ATLANTA, Georgia – 2025
Recent research reported in the Annals of Vertebral Subluxation Research reveals that chiropractic may play an important role in helping patients with upper body numbness, tingling, or a “pins and needles” sensation. The research reports the successful resolution of this in a woman diagnosed with T4 syndrome, following subluxation-based chiropractic care.
CLICK HERE to read the research
T4 syndrome, also known as upper thoracic syndrome, is characterized by upper body numbness or tingling and often present without clear neurologic or radiographic findings. The condition is thought to originate from dysfunction in the upper thoracic spine—especially the T4 vertebral level—and may be mediated through altered sympathetic nervous system activity. “This case contributes to the limited but growing body of literature emphasizing the role of the vertebral subluxation in the pathophysiology of T4 syndrome,” stated Matthew McCoy DC, MPH a chiropractor, public health researcher and editor of the journal that published the study.
McCoy added “If you damage or compress or otherwise interfere with the neurological structures in the spine this can have far reaching implications on the functioning of the body. Through research reports like this we are finding that correcting the structural abnormalities associated with these spinal problems reduces the nerve obstructions and people experience improvement.”
A 34-year-old woman presented with bilateral numbness and tingling in her hands and forearms, most pronounced in the early morning hours and described as a “glove-like” distribution. Her symptoms had persisted since childhood, following an unaddressed traumatic fall that resulted in a hyperextension injury of the cervical spine. She also reported upper back tightness and difficulty sustaining postural tasks, such as computer work, due to her symptoms.
Comprehensive chiropractic evaluation revealed vertebral subluxations at C2 and T4, postural distortions including anterior head carriage and upper thoracic kyphosis, restricted cervical and thoracic range of motion, and significant autonomic imbalance as detected by Tytron C-3000 thermography. These findings were consistent with T4 syndrome—a condition thought to result from upper thoracic spinal dysfunction affecting the sympathetic nervous system.
The patient underwent a course of chiropractic care utilizing the Diversified Technique. Adjustments targeted spinal segments identified through static and motion palpation, with a focus on correcting vertebral subluxations and restoring spinal biomechanics. Within three months, the patient experienced complete resolution of paresthesia, with sustained improvement reported throughout the remainder of care. Follow-up thermographic analysis showed normalization of autonomic readings, and post-care SF-36 scores reflected improved physical and mental well-being.
This case highlights the potential of subluxation-based chiropractic care in helping patients with T4 syndrome and supports the role of the misalignments in the spine that can affect the nerves and lead to problems with the body’s automatic functions, muscles, and movement. The study’s author called for additional research to investigate the clinical implications of chiropractic in this population.
Contact Information:
Matthew McCoy DC, MPH
Annals of Vertebral Subluxation Research
http://www.vertebralsubluxationresearch.com
drmatthewmccoy@gmail.com
954.281.2638
