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Sensitivity of lumbar spine loading to anatomical parameters
- Source :
- Putzer, M, Ehrlich, I, Rasmussen, J, Gebbeken, N & Dendorfer, S 2016, ' Sensitivity of lumbar spine loading to anatomical parameters ', Journal of Biomechanics, vol. 49, no. 6, pp. 953-958 . https://doi.org/10.1016/j.jbiomech.2015.11.003
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- Musculoskeletal simulations of lumbar spine loading rely on a geometrical representation of the anatomy. However, this data has an inherent inaccuracy. This study evaluates the inuence of dened geometrical parameters on lumbar spine loading utilizing ve parametrized musculoskeletal lumbar spine models for four different postures. The inuence of the dimensions of vertebral body, disc, posterior parts of the vertebrae as well as the curvature of the lumbar spine were studied. Additionally, simulations with combinations of selected parameters were conducted. Changes in L4/L5 resultant joint force were used as outcome variable. Variations of the vertebral body height, disc height, transverse process width and the curvature of the lumbar spine were the most inuential. The results indicated that measuring these parameters from X-rays would be most important to morph an existing musculoskeletal lumbar spine model for a subject-specic approach with respect to bone geometry. Furthermore, degeneration processes could lead to computational problems and it is advised that stiffness properties of discs and ligaments should be individualized.
- Subjects :
- Male
Models, Anatomic
musculoskeletal diseases
0206 medical engineering
Biomedical Engineering
Biophysics
02 engineering and technology
Lumbar vertebrae
Curvature
medicine.disease_cause
Weight-bearing
Weight-Bearing
03 medical and health sciences
0302 clinical medicine
Pressure
medicine
Humans
Orthopedics and Sports Medicine
Intervertebral Disc
Process (anatomy)
Mathematics
Lumbar Vertebrae
Rehabilitation
Lumbosacral Region
Stiffness
Intervertebral disc
Anatomy
Middle Aged
musculoskeletal system
020601 biomedical engineering
Vertebra
medicine.anatomical_structure
medicine.symptom
030217 neurology & neurosurgery
Lumbosacral joint
Subjects
Details
- ISSN :
- 00219290
- Volume :
- 49
- Database :
- OpenAIRE
- Journal :
- Journal of Biomechanics
- Accession number :
- edsair.doi.dedup.....715ad4688265e738564cb207f1dea297
- Full Text :
- https://doi.org/10.1016/j.jbiomech.2015.11.003