Degenerative lumbar spine disease: imaging and biomechanics

M Lacroix, C Nguyen, R Burns… - Seminars in …, 2022 - thieme-connect.com
Reduction in signal intensity of the disk, disk height loss, disk … but minimal resistance to
shearing forces (backward and … MRI studies dealing with muscle diseases, the muscle cross-…

Stepwise reduction of bony density in patients induces a higher risk of annular tears by deteriorating the local biomechanical environment

Z Xi, Y Xie, S Sun, N Wang, S Chen, X Kang, J Li - The Spine Journal, 2024 - Elsevier
… Moreover, lateral radiography to measure disc height for IDD … in the L4L5 motion segment
(compared to another lumbar … -dimensional structure of skeletal muscles, peripheral nerves, …

A finite element based comparative study of lumbosacral pedicle screw fixation and artificial disc replacement

JK Biswas, A Banerjee… - … and Science in …, 2023 - asmedigitalcollection.asme.org
… screw and artificial discs implanted in the lumbar spine region. … Muscle forces were also not
considered in this study. In future … It also indicated a reduced risk of adjacent disc disease. On …

Optimization of a rat lumbar IVD degeneration model for low back pain

JD Glaeser, W Tawackoli, DG Ju, JH Yang… - JOR …, 2020 - Wiley Online Library
… column were isolated from connective tissue and muscle. Prior … , a reduced X-ray-based
disc high index and poorer disc … needles can create high shear stress and consequent low cell …

Obesity could be associated with poor paraspinal muscle quality at upper lumbar levels and degenerated spine at lower lumbar levels: Is this a domino effect?

EE Özcan-Ekşi, VU Turgut… - Journal of Clinical …, 2021 - Elsevier
… proteoglycan content decrease, when intervertebral discs are … 2) IVDD or disc herniation
may increase shear forces on the … discs at L4-L5 level might transfer the shear forces one level …

[HTML][HTML] Lumbar lordosis and sacral slope do not differ in two types of postoperative lumbar disc re-herniation: a cross-sectional observational study

…, L Ni, H Zhao, L Yang, H Yang, L Zhang - BMC Musculoskeletal …, 2024 - Springer
… To reduce selection bias, we collected the data of all LDH … an excess load on joints, muscles
and ligaments around the … shear force and causes the shear force acting on the lumbar

Biomechanics evaluation of sacroiliac joint pain after lumbosacral fusion: A finite element analysis

Z Yao, L Li, P Zhang, L Yang, X Bai… - Journal of …, 2023 - Wiley Online Library
… process, the ligament sudden increase or decrease is likely … or capsular tension, extraneous
compression, and shear forces. … Moreover, the shortage of muscle forces under our model …

The effect of the loading rate on the full-field strain distribution on the surface on the intervertebral discs

R Maria Luisa, C Luca - Journal of Biomechanical …, 2021 - asmedigitalcollection.asme.org
… large drop in pressure. To map the pressures in the NP and within the AF of the human spinal
discs, … The specimens were cleaned of all muscles. To preserve the natural constraints, the …

Novel force–displacement control passive finite element models of the spine to simulate intact and pathological conditions; comparisons with traditional passive and …

A Abbasi-Ghiri, M Ebrahimkhani, N Arjmand - Journal of Biomechanics, 2022 - Elsevier
muscle injuries are represented by reducing physiological cross-sectional areas (PCSAs) of
multifidus and erector spinae muscles … level disc shear forces and facet/ligament forces were …

[HTML][HTML] Lumbar sacralization and L4-L5 microdiscectomy, a prospective cohort study on radiologic and clinical outcomes

P Omidi, S Abrishamkar, M Mahmoodkhani… - World Neurosurgery …, 2024 - Elsevier
muscle sharp dissection, we gained access to L4-L5 space. … and continuous effect on pain
reduction and is considered an … vertical and shear forces on sacralized L4-L5 disc space to …