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Keywords: Nucleus Pulposus
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Journal Articles
Article Type: Research-Article
J Biomech Eng. August 2021, 143(8): 081002.
Paper No: BIO-20-1032
Published Online: April 21, 2021
...Bo Yang; Eric Klineberg; Grace D. O'Connell Painful herniated discs are treated surgically by removing extruded nucleus pulposus (NP) material (nucleotomy). NP removal through enzymatic digestion is also commonly performed to initiate degenerative changes to study potential biological repair...
Journal Articles
Article Type: Research-Article
J Biomech Eng. May 2019, 141(5): 051004.
Paper No: BIO-18-1287
Published Online: March 25, 2019
...Bo Yang; Yintong Lu; Colin Um; Grace D. O'Connell Aging and degeneration of the intervertebral disk are noted by changes in tissue composition and geometry, including a decrease in nucleus pulposus (NP) area. The NP centroid is positioned slightly posterior of the disk's centroid, but the effect...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. October 2013, 135(10): 104501.
Paper No: BIO-13-1180
Published Online: September 13, 2013
...; published online September 13, 2013. Assoc. Editor: James C. Iatridis. 09 04 2013 25 07 2013 28 07 2013 Existing experimental data on the Poisson's ratio of nucleus pulposus (NP) tissue is limited. This study aims to determine whether the Poisson's ratio of NP tissue is strain...
Journal Articles
Article Type: Research-Article
J Biomech Eng. June 2013, 135(6): 061004.
Paper No: BIO-12-1270
Published Online: May 9, 2013
... spinal motion segments. It is also important to note that continued repetition of the event causing specimen fatigue after performing hydrogel injection will result in an eventual return to the same fatigued state. intervertebral disc nucleus pulposus herniation hydrogel angular stiffness...
Journal Articles
Article Type: Research Papers
J Biomech Eng. September 2011, 133(9): 091006.
Published Online: October 11, 2011
... biochemistry biomechanics bone cellular biophysics deformation finite element analysis patient treatment glucose annulus fibrosus nucleus pulposus mechanical loading cell density Each year, millions of Americans experience symptoms of low back pain, resulting in annual expenditures...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. May 2009, 131(5): 054505.
Published Online: April 13, 2009
... of the tissue. Three lumbar IVDs were harvested from three human spines. From each disk, four AF specimens were prepared in each of the three principal directions (axial, circumferential, and radial), and four axial nucleus pulposus (NP) specimens were prepared. Conductivity was determined using a four-wire...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. December 2006, 128(6): 823–829.
Published Online: June 14, 2006
...Edward J. Vresilovic; Wade Johannessen; Dawn M. Elliott Mechanical function of the intervertebral disc is maintained through the interaction between the hydrated nucleus pulposus, the surrounding annulus fibrosus, and the superior and inferior endplates. In disc degeneration the normal transfer...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. June 2005, 127(3): 536–540.
Published Online: January 31, 2005
... biomechanics prosthetics compressive testing Lumbar Spine Intervertebral Disc Nucleus Pulposus Hydrogel Nucleus Implant Compressive Stiffness Lower Back Pain Nucleus replacement has been investigated as a treatment for lower back pain since Nachemson first described the concept in 1962 ( 1...