Jonathon Yoder

yoderUniversity of Pennsylvania
hyoder@seas.upenn.edu

EDUCATION
Ph.D. Mechanical Engineering and Applied Mechanics, 2014, University of Pennsylvania
M.S. Mechanical Engineering and Applied Mechanics, 2007, University of Pennsylvania 
B.S. Mechanical Engineering, 2005, Villanova University

 

3D Intervertebral Disc Strain Quantification

I utilize MR imaging to non-invasively visualize disc structures (annulus lamellae, nucleus pulposus,endplates) and quantify defects. I am applying thistechnique, using image registration, to quantify 3D internal disc strains, analyzing the effects of degeneration on mechanical function during compression and torsion loading.

 

 

Publications

  1. Nonlinear and anisotropic tensile properties of graft materials used in soft tissue applications. Yoder JH, Elliott DM. Clin Biomech (Bristol, Avon). 2010 May;25(4):378-82. Epub 2010 Feb 2.
  2. Augmentation improves human cadaveric vertebral body compression mechanics for lumbar total disc replacement. Yoder JH, Auerbach JD, Maurer PM, Erbe EM, Entrekin D, Balderston RA, Bertagnoli R, Elliott DM. Spine (Phila Pa 1976). 2010 Apr 20;35(9):E325-31.
  3. Noninvasive quantification of human nucleus pulposus pressure with use of T1rho-weighted magnetic resonance imaging. Nguyen AM, Johannessen W, Yoder JH, Wheaton AJ, Vresilovic EJ, Borthakur A, Elliott DM. J Bone Joint Surg Am. 2008 Apr;90(4):796-802.
  4. Nguyen AM, Johannessen W, Yoder JH , Wheaton AJ, Vresilovic EJ, Borthakur AJ, Elliott DM. Noninvasive quantification of human nucleus pulposus pressure using T1Ρ-weighted MRI as a biomarker of degeneration. Journal of Bone and Joint Surgery, (In review).

Conference Papers

  1. Jacobs NT, Yoder JH, Cortes DH, Moon SM, Vresilovic EJ, Wright AC, Elliott DM. Quantifying Annulus Fibrosus Mechanics and Fissures Using MRI and Finite Element Modeling. 7th Combined Meeting of the Orthopaedic Research Societies, 2010. (Poster)
  2. Yoder JH, Fenty M, Walters V, Borthakur A, Elliott DM. Intervertebral Disc Axial Compression Does Not Alter the T1rho Relaxation Time. Orthopaedic Research Society, 2010. (Poster)
  3. Jacobs NT, Morelli J, Smith LJ, Yoder JH, Elliott, DM. Annulus Fibrosus Shear Mechanical Properties and the Contributions of Glycosaminoglycans and Elastic Fibers to Shear are Anisotropic. Orthopaedic Research Society, 2010. (Poster)
  4. Elliott DM, Fenty M, Witschey WR, Yoder JH, Maurer PM, Borthakur A. T1rho-Weighted MRI and Opening Discography Pressure are Quantitative Biomarkers of Disc Degeneration in Patients. Orthopaedic Research Society, 2010. (Podium Presentation)
  5. Kim M, Erickson I, Yoder JH, Mauck RL, Witschey W, Fenty M, Reddy R, Dodge G. Evaluation of Integrative Cartilage Repair with Scafforld-Free Constructs. Orthopaedic Research Society, 2010. (Podium Presentation)
  6. Wright AC, Yoder JH, Tustison N, Gee J, Wehrli1 FW, Elliott DM. High-Resolution MRI at 7T of Local Strains in the Intervertebral Disc. International Society for Magnetic Resonance in Medicine, 2010. (Poster)
  7. Yoder JH, Henninger HB, Weiss JA, Elliott DM. Annulus Fibrosus Shear Properties are Consistent with Motion Segment Mechanics when Fibers are Loaded. ASME Summer Bioengineering Conference, 2009. (Podium Presentation)
  8. Yoder JH , Auerbach JD, Maurer PM, Erbe EM, Entrekin D, Balderston RA, Bertagnoli R, Elliott DM. Augmentation with Cortoss improves vertebral body compression biomechanics for lumbar total disc replacement. ASME Summer Bioengineering Conference, 2007. (Podium Presentation)
  9. Auerbach JD, Yoder JH , Maurer PM, Erbe EM, Entrekin D, Balderston RA, Bertagnoli R, Elliott DM. Vertebral body augmentation with Cortoss improves compression biomechanics for lumbar disc arthroplasty. International Society for the Study of Lumbar Spine, 2007. (Special Emphasis Poster)
  10. Auerbach JD, Yoder JH , Maurer PM, Erbe EM, Entrekin D, Balderston RA, Bertagnoli R, Elliott DM. Augmentation with Cortoss improves vertebral compression biomechanics for lumbar disc arthroplasty. 7th Annual Spine Arthroplasty Society Meeting, 2007. (Poster)