Does lumbar facet fluid detected on magnetic resonance imaging correlate with radiographic instability in patients with degenerative lumbar disease?
There is a close linear association between the facet fluid index and the amount of radiographic instability at L4-L5. Facet fluid on MRI should raise high suspicion of lumbar instability.
COMP was lower in children with idiopathic scoliosis than in a control cohort. In children with scoliosis, high COMP was modestly correlated with high growth velocity, but not with curve severity.