Relationship between sedimentation sign and morphological grade in symptomatic lumbar spinal stenosis

摘要: Purpose We aimed to study the relationship between two morphological parameters recently described on MRI images in relation lumbar spinal stenosis (LSS): first is sedimentation sign (SedS) and second grading of stenosis. Materials methods MRIs from a total 137 patients were studied. From those, 110 issued prospective database symptomatic LSS patients, whom 73 treated surgically 37 conservatively based symptom severity. A third group consisting 27 subjects complaining low back pain (LBP) served as control. Severity was judged at disc level using four D grade classification. The presence SedS pedicle level, above or below site maximal Results positive observed 58, 69 76 % demonstrating B, C morphology, respectively, but none with morphology. 67 35 8 LBP group. grades present 97 group, 18 Presence carried an increased risk being submitted surgery (OR 3.5). This even higher morphology 65). Discussion conclusion One-third do not SedS. appears be lesser predictor treatment modality our setting compared severity by grade.