Validity of sedimentation sign of nerve root in diagnosis of lumbar canal stenosis | [Rawal Medical Journal • 2022]

Author(s):

1. Haider Dhia Nasser: Department of Radiology, Basrah University, Al-Zahraa Medical College, Saint Georges Hospital, London, UK

2. Mubder Abdul Raheem Mohammed Saeed: Department of Radiology, Basrah University, Al-Zahraa Medical College, Saint Georges Hospital, London, UK

3. Raed Jasim Chasib: Department of Radiology, Basrah University, Al-Zahraa Medical College, Saint Georges Hospital, London, UK

4. Daren Lui: Department of Radiology, Basrah University, Al-Zahraa Medical College, Saint Georges Hospital, London, UK

5. Thamer Ahmed Hamdan: Department of Radiology, Basrah University, Al-Zahraa Medical College, Saint Georges Hospital, London, UK

Abstract:

Objective: To evaluate the validity of nerve root sedimentation sign in diagnosis of central lumbar canal spinal stenosis. Methodology: This is a cross sectional analytic study of 711 patient's magnetic resonance image (MRI) examination, from 1st of April 2019 until 1st of December 2020 for patients complaining from low back pain with or without sciatica. The patients were divided in three groups according to lumbosacral spine MRI findings: Group I individuals with normal MRI, Group II with lumbar disc prolapse and Group III with lumbar canal stenosis. We measured the spinal canal and dural sac diameter at each level from first lumbar (L1) to fifth lumbar (L5) vertebrae.We looked for nerve root sedimentation sign above and below these levels. Results: Positive nerve root sedimentation sign was seen in 15.2 % of normal MRI group, 50.42% of disc prolapse group and in 86.4% of lumbar canal stenosis group. The sensitivity and specificity of nerve root sedimentation sign for the diagnosis of lumbar canal stenosis were 86.4% and 84.74, respectively. Conclusion: The nerve root sedimentation sign is sensitive but not specific for diagnosis of lumbar canal stenosis and can be used as added tool to clinical examination for diagnosis of lumbar canal stenosis.

Page(s): 667-671

DOI: DOI not available

Published: Journal: Rawal Medical Journal, Volume: 47, Issue: 3, Year: 2022

Keywords:

Nerve root sedimentation sign , magnetic resonance image , lumbar canal stenosis

References:

References are not available for this document.

Citations

Citations are not available for this document.

Citations

Downloads

Views