This can cause not only pain in the back but also functional issues with movement. Multifidus muscle atrophy and association with low back pain. A linear mixed effects model followed by Sidak's multiple comparison tests was used to find significant differences between multifidus shear modulus between patients (RFN or PLF) and matched controls for each of the body positions (lying down, sitting up, and sitting up with the arms lifted). “Multifidus Muscle Characteristics and Physical Function Among Older Adults With and Without Chronic Low Back Pain.” Arch Phys Med Rehabil. The multifidus muscle showed lower shear modulus in RFN and PLF group in all postures, indicating a reduced muscle contraction after RFN and PLF procedures. Dysfunction in the lumbar multifidus muscles is strongly associated with low back pain. 1(b)). A continuing-education service for chiropractors & other manual-medicine providers offering affordable, evidence-informed & clinically applicable subscription to weekly research reviews of evidence-based scientific information, live seminars & online credit-hour courses. Provides proprioceptive feedback and input due to high muscle spindle density; Bilateral backward extension, unilateral ipsilateral side-bending and contralateral rotation. The change in median shear modulus from lying prone to sitting up and from sitting up to sitting up with the lifted arms was more significant in the healthy participants compared to changes in the other groups. The multifidus muscle provides stiffness, stability, and support to the spinal column. A cross-sectional analysis of reliability and concurrent validity performed in a university outpatient research facility. Ultrasonics, Ferroelectr., Frequency Control, Ultrasound Shear Wave Elastography of the Elbow Ulnar Collateral Ligament: Reliability Test and a Preliminary Case Study in a Baseball Pitcher, Evaluating Changes in Shear Modulus of Elbow Ulnar Collateral Ligament in Overhead Throwing Athletes Over the Course of a Competitive Season, The Shear Modulus of Lower-Leg Muscles Correlates to Intramuscular Pressure, Narrowband Shear Wave Generation Using Sinusoidally Modulated Acoustic Radiation Force, The Pain Catastrophizing Scale: Development and Validation, A Comparison of a Modified Oswestry Low Back Pain Disability Questionnaire and the Quebec Back Pain Disability Scale, The Visual Analogue Scale: Its Use in Pain Measurement, Ultrasound Imaging: Intraexaminer and Interexaminer Reliability for Multifidus Muscle Thickness Assessment in Adults Aged 60 to 85 Years Versus Younger Adults, Criterion Validity of Ultrasound Imaging: Assessment of Multifidi Cross-Sectional Area in Older Adults With and Without Chronic Low Back Pain, Age-Related Differences in Muscle Shear Moduli in the Lower Extremity, Shear Wave Elastography Reveals Different Degrees of Passive and Active Stiffness of the Neck Extensor Muscles, Shear Wave Elastography of the Lumbar Multifidus Muscle in Patients With Unilateral Lumbar Disk Herniation, The Quantitative Analysis of Back Muscle Degeneration After Posterior Lumbar Fusion: Comparison of Minimally Invasive and Conventional Open Surgery, Effects of Muscle Dysfunction on Lumbar Spine Mechanics: A Finite Element Study Based on a Two Motion Segments Model, Muscle Shear Elastic Modulus is Linearly Related to Muscle Torque Over the Entire Range of Isometric Contraction Intensity, Structural Changes of Lumbar Muscles in Non-Specific Low Back Pain, Copyright © 2020 The American Society of Mechanical Engineers, This site uses cookies. [29] assessed the reliability of SWE for quantifying L4-5 multifidus shear modulus in 18 healthy individuals at prone, sitting up and sitting up with an arm lifted postures, reporting shear modulus of 16.15 (6.69), 27.28 (15.72), and 45.02 (25.27), respectively. The presence of lumbar disk herniation compresses the adjacent nerve root, which may cause a change in multifidus function depending on the compression severity. The multifidus muscle gained notoriety in the mid 1990's when researchers at Queensland University first demonstrated gross muscle atrophy using real-time ultrasound. The results of this preliminary study will assist in the design of appropriate rehabilitative recovery procedures for improving multifidus muscle function in RFN and PLF patients. Similarly, muscle dissection and retraction during PLF procedures cause a localized multifidus iatrogenic injury that results in atrophy [8] and reduced trunk strength [9]. 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