Unraveling the Impact of Motor Vehicle Trauma on Cervical Vertebral Subluxation: A Retrospective Analysis
Originally published: 2025-04-16
Motor vehicle accidents (MVAs) are one of the most common traumatic events that disrupt spinal integrity, particularly in the cervical region. A recent retrospective study by Drs. Todd Cielo and Jeff Bourguignon, published in the Annals of Vertebral Subluxation Research, investigates the link between translational movement of cervical vertebrae and the presence of vertebral subluxation following MVA-related trauma.
This study sheds light on subtle yet clinically significant post-traumatic spinal misalignments that are often missed using conventional orthopedic or emergency care assessments. Translational shifts—anterior or posterior gliding of cervical vertebrae—are frequently ignored when there are no fractures or gross instability. Yet, as the study shows, they may be key indicators of neurological interference.
Drawing from patient records and radiographic analysis, the authors documented that individuals who suffered MVAs displayed clear evidence of vertebral subluxation in the form of translational misalignments. Most notably, these were not always accompanied by acute pain or inflammation, making them easy to overlook unless a chiropractor trained in subluxation analysis was involved.
“Motor vehicle accidents play a significant role in the biomechanical changes leading to vertebral subluxation,” the authors wrote, emphasizing the chronic impact these events can have on spinal alignment.
Patients often presented with chronic headaches, neck stiffness, brain fog, or dizziness—symptoms that persisted long after the physical trauma was assumed to be resolved. This suggests that unresolved subluxations may create long-term interference in the nervous system that contributes to diminished quality of life.
One of the critical contributions of this paper is its challenge to mainstream imaging protocols. Standard emergency department radiographs typically look for fractures, dislocations, or gross instability, but may miss subtle translational shifts unless the images are analyzed from a chiropractic biomechanical perspective. The study argues for broader adoption of specific analysis methods, including stress views and digital measurement tools, to capture these clinically relevant findings.
“Early chiropractic intervention post-MVA is crucial in addressing vertebral subluxations that may not be immediately symptomatic,” the authors noted.
The clinical implications of this research are far-reaching. It reinforces the role of the chiropractor not only as a pain manager but as a neurostructural expert who can detect early biomechanical deviations before they progress to irreversible dysfunction.
Furthermore, the paper underscores the need for proactive spinal health evaluations for all individuals involved in MVAs, regardless of symptom presentation. In the same way that one would not ignore a mild concussion due to lack of immediate symptoms, vertebral subluxations resulting from trauma warrant the same vigilance.
“The correction of translational subluxations may prevent long-term degeneration and chronic neurological compromise,” the authors concluded.
As the chiropractic profession continues to assert its value in structural and functional healthcare, studies like this one highlight the unique expertise chiropractors bring to trauma recovery and preventative care. The findings also invite a broader discussion about integrating chiropractic into emergency and rehabilitative protocols for accident victims.
Reference: Cielo, T. J., & Bourguignon, J. (2024). The Relationship Between Translational Movement of Cervical Vertebrae, Vertebral Subluxation and Motor Vehicle Trauma: A Retrospective Analysis. Annals of Vertebral Subluxation Research. December 16, 2024.

