Table 8.

Clinical and imaging features of vertebral artery injury

Variable	Sensitivity %	Specificity %	PPV %	NPV %
Transverse foramen fracture	58	36	44	50
Facet dislocation	42	57	45	53
Cervical subluxation	56	71	38	83
Complete spinal cord injury	67	79	50	88

PPV, positive predictive value; NPV, negative predictive value.