Noninvasive measurement of sciatic nerve stiffness in patients with chronic low Bback related leg pain using shear wave Eeastography - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Ultrasound in Medicine Année : 2018

Noninvasive measurement of sciatic nerve stiffness in patients with chronic low Bback related leg pain using shear wave Eeastography

Résumé

Objectives: The purpose of this study was to determine whether sciatic nerve stiffness is altered in people with chronic low back-related leg pain by using shear wave elastography.Methods: In this cross-sectional study, the sciatic nerve shear wave velocity (ie, an index of stiffness) was measured in both legs of 16 participants (8 with unilateral low back-related leg pain and 8 healthy controls). Sciatic stiffness was measured during a passive ankle dorsiflexion motion performed at 2°/s in an isokinetic dynamometer. The ankle range of motion and passive torque, as well as muscle activity, were also measured.Results: In people with low back-related leg pain, the affected limb showed higher sciatic nerve stiffness compared to the unaffected limb (+11.3%; P = .05). However, no differences were observed between the unaffected limb of people with low back-related leg pain and the healthy controls (P = .34).Conclusions: People with chronic low back-related leg pain have interlimb differences in sciatic nerve stiffness, as measured by a safe and noninvasive method: shear wave elastography. The changes found may be related to alterations in nerve mechanical properties, which should be confirmed by future investigations.
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Dates et versions

hal-03352459 , version 1 (25-05-2022)

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Tiago Neto, Sandro Freitas, Ricardo Andrade, João Vaz, Bruno Mendes, et al.. Noninvasive measurement of sciatic nerve stiffness in patients with chronic low Bback related leg pain using shear wave Eeastography. Journal of Ultrasound in Medicine, 2018, 38 (1), pp.157-164. ⟨10.1002/jum.14679⟩. ⟨hal-03352459⟩
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