Stable Spondylolisthesis: Should Management Change Based on Presence of Facet Cysts?

Clinical Spine Surgery : a Spine Publication
Arunit J S ChughJason D Eubanks

Abstract

This is a retrospective cohort review. To determine whether a correlation exists between facet cysts and lumbar instability. Lumbar facet cysts are common degenerative entities observed in patients with low-grade spondylolisthesis at a rate of 10%-50%. Surgical management with partial facetectomy with or without fusion remains controversial. Review of 86 patients with lumbar degenerative spondylolisthesis is performed. Preoperative magnetic resonance imagings were reviewed for the presence of lumbar facet cysts and Facet Fluid Indices (FFI)-calculated as the ratio of facet fluid width to facet width. Instability was defined as a difference of >3 mm in vertebral displacement between flexion and extension radiographs. T tests and the Pearson correlation analyses were used to determine statistical significance. In total, 26 patients had unstable and 60 had stable spondylolisthesis. Facet cysts were present at an overall prevalence of 30.1%-in 10/26 patients in the unstable group and in 18/60 patients in the stable group (P>0.05). The average FFIs for the unstable and stable groups were 0.13 and 0.09, respectively (P>0.05). FFI in patients with facet cysts was significantly higher than those without (P<0.05). In addition, the group...Continue Reading

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Citations

Feb 27, 2021·Clinical Spine Surgery : a Spine Publication·Barrett S BoodyThemistocles S Protopsaltis

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