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Orientation and tropism of lumbar facet joints in degenerative spondylolisthesis

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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.

Résume.

L'orientation et la divergence des facettes articulaires postérieures à l'étage L4-L5 ont été étudiées par IRM chez 53 patients porteurs d'un spondylolisthésis dégénératif et chez 53 patients témoins d'âge et de sexe correspondants. L'atteinte du disque L4-L5 et le glissement vertébral ont aussi été évalués. Chez les patients atteints de spondylolisthésis dégénératif, les facettes sont plus sagittales (P<0.01) et plus divergentes (P<0.05) que dans le groupe témoin et cette divergence est corrélée avec le degré de dégénérescence discale (P<0.05). Ces résultats suggèrent que les anomalies morphologiques des facettes articulaires lombaires prédisposent au développement du spondylolisthésis dégénératif.

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Dai, L. Orientation and tropism of lumbar facet joints in degenerative spondylolisthesis. International Orthopaedics (SICOT) 25, 40–42 (2001). https://doi.org/10.1007/s002640000201

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  • DOI: https://doi.org/10.1007/s002640000201

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