Grade | Clinical Presentation |
0 | No complaint about the neck No physical sign(s) |
I | Neck complaint of pain, stiffness or tenderness only No physical sign(s) |
II | Neck complaint AND - Musculoskeletal sign(s)a |
III | Neck complaint AND - Neurological sign(s)b |
IV | Neck complaint AND - Fracture or dislocation |
a Musculoskeletal signs include decreased range of motion and point tenderness.
b Neurologic signs include decreased or absent deep tendon reflexes, weakness, and sensory deficits.Symptoms and disorders that can be manifest in all grades include deafness, dizziness, tinnitus, headache, memory loss, dysphagia and temporomandibular joint pain.
Dotted lines indicate limits of terms of reference of Task Force