September 17, 2025

Thickness of ligamentum flavum of LS spine in MRI and its correlation with age, sex and its symmetry

Key Points

Thickness measurements of ligamentum flavum suggest significant variations in lumbar spine anatomy related to age and sex.
At L3-L4, the right side measures 1.8 mm and the left side measures 1.98 mm, reflecting structural asymmetry.
This prospective study involved normal MRI findings, providing a baseline for comparing symptomatic populations.
Understanding normal thickness aids early identification of abnormalities, potentially improving treatment outcomes.

Abstract

Motivation: A clear anatomic description of ligamentum flavum is important to surgeon who enters the spinal canal prior to surgery . Morphometry may vary according to different races and ethinicity. Studies till now have mostly discussed about the thickness of ligamentum flavum in degenerative subjects with existing low back pain. Goal(s): We aim to measure the thickness of Ligamentum Flavum in normal subjects. Approach: A prospective study was carried out in subjects with normal MRI findings. Results: The thickness of ligamentum flavum measured was L3-L4: right 1.8 mm, left 1.98 mm, L4-L5 : right 2.22 mm ,left 2.29 and L4-L5 :right 2.33 mm , left 2.38 mm Impact: Our data will aid finding the thickness of ligamentum flavum in Nepalese population. Any thickening in the symptomatic population will help in early identification of ligamentum flavum thickening which improves the treatment leading to positive outcome and reduction of complication

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Cite This Study

Gwachha et al. (Tue,) studied this question.

synapsesocial.com/papers/68d4597031b076d99fa5c487 https://doi.org/https://doi.org/10.58530/2025/5384

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