C4-C5 Anterior Subluxation: Understanding Risks & Potential Complications

C4‑C5 Anterior Subluxation (2 mm)

A 2 mm anterior displacement of C4 on C5 can compress the spinal cord and nerve roots, leading to:

• Neck pain and stiffness
• Radiculopathy (arm pain, numbness, weakness)
• Cervical myelopathy (gait disturbance, hand clumsiness, sensory loss)
• In severe cases, quadriparesis or respiratory compromise

Urgent Evaluation Needed

Immediate imaging (CT/MRI) and neurosurgical/orthopedic spine consultation are warranted. Treatment may include cervical collar immobilization, traction, or surgical fusion/decompression depending on stability and neurologic status.

Do not delay seeking care if you experience any neurologic symptoms after neck trauma.