Clinical and Radiological Analysis of Dural Sac Diameter in Lumbar Spinal Stenosis

Abstract

Objectives: Lumbar spinal stenosis (LSS) is a severe degenerative disease that affects the human spine. The relationshipbetween its symptoms and dural sac diameter is not apparent. In this study, we investigated the relationship betweenclinical signs of LSS and morphological parameters using magnetic resonance imaging (MRI) data.Methods: A total of 218 patients included in the study. All patients were divided into two groups(group A- the level ofthe dural sac diameter 70 mm2). Clinical signs as the estimatedwalking distance (EWD), visual analog scale (VAS) and Oswestry disability index (ODI).Results: MRI data, and types of surgery recorded for each patient. Decompressive laminectomy and fusion (DL+F) orunilateral laminotomy bilateral decompression (ULBD) preferred in 76 patients of this group.Conclusion: Magnetic resonance imaging (MRI) has an essential role in the diagnosis of LSS. Our study showed a positivecorrelation between dural sac diameter and EWS, VAS and ODI values on axial T2-weighted MR images of patientsundergoing surgery.