II. Imaging: General
-
Cervical Spine XRay
- Typically a first-line study, but limited efficacy in radiculopathy, and low Specificity in age over 50 years
- Indicated in persistent Neck Pain symptoms >4-6 weeks, Trauma, cancer red flags
- Cervical Spine CT is preferred for adults with Traumatic neck injury
- Views
- Standard: Anteroposterior, Lateral (and oblique views in suspected foraminal stenosis)
- Trauma: Anteroposterior Open Mouth Odontoid view (in addition to standard views)
- Additional views to consider: Flexion and extension views
-
Cervical Spine CT
- Not as useful in evaluating cervical disc or radiculopathy (without myelography) as MRI
- Traumatic neck injury evaluation in adults at acute emergency visit
- Avoid in children
- See CT-associated Radiation Exposure
- Children are higher risk for ligamentous instability (MRI) than Vertebral Fracture
- Consult with local experts
- Consider MRI Cervical Spine instead if XRay not diagnostic
- CT Cervical Spine with Myelography (requires spinal contrast injection)
- May offer definitive evidence where MRI is non-diagnostic in Cervical Radiculopathy
- Offers alternative for patients who cannot undergo MRI
-
Cervical Spine MRI
- High rate of False Positives (57% over age 64 years) and False Negatives in Cervical Radiculopathy
- Urgent Indications
- Neck Pain Red Flags
- Progessive neurologic deficit over 3-4 weeks
- Cervical Myelopathy
- Epidual abscess or other Spinal Infection suspected
- Signs of bony destruction on XRay (suggestive of Spinal Infection, requires IV contrast)
- Suspected Spinal Neoplasm (e.g. metastasis)
- Vertebral Fractures
- Degenerative osteophytes with suspected nerve compression
- Routine Indications (>6 weeks of symptoms)
- Refractory Neck Pain course beyond 6 weeks of conservative therapy
- Suspected Cervical Disc Herniation >6 weeks
- Persistent Whiplash Symptoms (to evaluate differential diagnosis including discs, spurs and ligament injury)
- Controversial as to benefit
III. Imaging: Evaluation of chronic Neck Pain
- Step 1: All Patients with chronic Neck Pain
- Cervical Spine XRay with 5 views (AP, Lateral, odontoid, obliques)
- Step 2: MRI Cervical Spine indications (CXT myelography where MRI is contraindicated)
- No further imaging needed in Spondylosis without neurologic changes
- See MRI indications as above
IV. Imaging: Studies NOT helpful in diagnosis
- Chronic Neck Pain
- Provocative diagnostic discography is not reliable
V. References
- Childress (2016) Am Fam Physician 93(9): 746-54 [PubMed]
- Daffner (2010) Am Fam Physician 82(8): 959-64 [PubMed]
- Eubanks (2010) Am Fam Physician 81(1): 33-40 [PubMed]
- Polston (2007) Neurol Clin 25(2): 373-85 [PubMed]
- Rhee (2007) J Am Acad Orthop Surg 15(8): 486-94 [PubMed]
- Tong (2003) J Neuroimaging 13(1): 5-16 [PubMed]