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. 2001 Feb 2;25(1):40–42. doi: 10.1007/s002640000201

Orientation and tropism of lumbar facet joints in degenerative spondylolisthesis

LY Dai 1
PMCID: PMC3620620  PMID: 11374266

Abstract.

The orientation and tropism of the lumbar facet joints at L4–5 level was assessed by magnetic resonance imaging (MRI) in 53 patients with degenerative L4–5 spondylolisthesis and 53 age- and sex-matched normal control subjects. The degree of disc degeneration at the L4–5 level and of vertebral slip on lateral radiographs was also evaluated. Patients with degenerative spondylolisthesis had more sagittally orientated facet joints (P<0.01) and more significant facet joint tropism (P<0.05) than normal control subjects. For patients with degenerative spondylolisthesis, the facet joint tropism was significantly correlated with the degree of disc degeneration (P<0.05). The results suggest that morphological abnormalities of the lumbar facet joints are a predisposing factor in the development of degenerative spondylolisthesis.

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