Which rheumatic disorders commonly involve the neck?
| Disorder | Feature |
|---|---|
| Rheumatoid arthritis | C1–C2 (atlantoaxial) subluxation, cranial settling |
| Juvenile idiopathic arthritis | C2–C3 fusion, C1–C2 subluxation, fusion of apophyseal joints |
| Ankylosing spondylitis | Ankylosis, C5–C6 fracture, C1-C2 subluxation |
| Diffuse idiopathic skeletal hyperostosis | Anterior longitudinal ligament ossification, stiffness |
| Osteoarthritis | C5–C7 spondylosis |
| Polymyositis | Flexor muscle weakness |
| Polymyalgia rheumatica | Pain and stiffness |
| Fibromyalgia | C2, C5–C7 tender points |
