Figure 23 Rotational subluxation between C1 and C2 Rotational subluxation between C1 and C2 can also cause compression of the brain stem and potential injury. Level: Structures: Other Structures: Pathology: Procedure: View: C1 – C2 Neural: Brainstem and spinal cord Dura None C1 – C2 rotatory subluxation None Composite (3/4), Front, Lateral, Caudal