Chronic low back pain differential diagnosis
Chronic low back pain differential diagnosis includes
1. degenerative conditions
a) degenerative spondylolisthesis
2. spondyloarthropathies
a) ankylosing spondylitis:look for erosive changes adjacent to SI joint and positive test for HLA- B27 antigen
b) Paget’s disease of the spine: vertebral involvement is very common in a patients with Paget’s disease
3. osteitis condensans ilii: increased density in ilium, usually asymptomatic (incidental) finding. Occasionally may produce low back pain or tenderness. Usually found in women who have been pregnant
4. psychological overlay: including secondary gain (financial, emotional…)