Peter Cripton

Peter Cripton

Peter Cripton

Professor

P.Eng., External; B.Sc. (Dalhousie); B.Eng. (Technical University of Nova Scotia); M.Sc.[Eng.] and Ph.D. (Queen’s); Postdoctoral Fellowship (Yale)

phone: (604) 822-6629
fax: (604) 822-2403
email: cripton@mech.ubc.ca
website:  Orthopaedic and Injury Biomechanics Group
office: CEME 2063

Research Interests

  • Orthopaedic Biomechanics
  • Injury Biomechanics
  • Neurotrauma (Spinal Cord and Brain Injury)
  • Biomechanics of Hip Fracture
  • Injury Prevention

Current Research Work

  • Pro-Neck-Tor’ Helmet:  Prevents spinal cord injuries (SCI) during head-first impacts that can occur during sports and transportation accidents. Awarded a “Best of What’s New” award by Popular Science for this helmet. Actively commercializing this helmet, underlining both the improved brain injury protection and the spinal column and spinal cord protection provided by its shell.
  • Neck muscle activation and cervical spine posture during automotive rollovers.
  • Neck injury criteria for head-first impacts that happen with lateral bending (head leaning sideways).
  • Spine degeneration and geriatric spinal cord injury.
  • Cerebrospinal fluid dynamics during an SCI and the role of pressure variation of this fluid on the patient during clinical treatment.
  • Finite Element Analysis of the spine during head-first impacts.
  • Safe medical evacuation of soldiers suffering from an SCI.
  • Biomechanics of spine implants.
  • Efficacy of snowboard helmets during head first impacts on snow
  • Bicycle helmet performance and testing methods.
  • Skull accelerations during headfirst impacts by hockey players.
  • Regional brain deformation and injury during head impacts leading to concussion
  • Biomechanics of Hip Injury: Studies the basic mechanisms of hip fracture using cadaveric specimens and high speed data collection. One aim of this research is to identify features in the bone architecture that predispose a specific hip to early fracture. This information can be used in preventative screening.
  • Bicycle safety improvement through infrastructure design, in association with Kay Teschke.

Selected Publications

  • W.H. Cheng,  K.M. Martens, A. Bashir, H. Cheung, S. Stukas, E. Gibbs, D.R. Namjoshi, E.B. Button, A. Wilkinson, C.J. Barron, and N.R. Cashman, “CHIMERA repetitive mild traumatic brain injury induces chronic behavioural and neuropathological phenotypes in wild-type and APP/PS1 mice,” Alzheimer’s research & therapy, 11(1), p.6, January 2019.
  • I. Fleps, W.S. Enns-Bray, P. Guy, S.J. Ferguson, P.A. Cripton, and B. Helgason, “Correction: On the internal reaction forces, energy absorption, and fracture in the hip during simulated sideways fall impact,” PLoS one13(11), p.e0208286, November 2018.
  • E. Lucas, T. Whyte, J. Liu, C.M. Russell, W. Tetzlaff, and P.A. Cripton, “High-Speed Fluoroscopy Used to Measure Dynamic Spinal Cord Deformation in an In Vivo Rat Model,” Journal of neurotrauma, (ja), October 2018.
  • R.S. Newell, J.S. Blouin, J. Street, P.A. Cripton, and G.P. Siegmund, “The neutral posture of the cervical spine is not unique in human subjects,” Journal of Biomechanics80, pp.53-62, October 2018.
  • I. Fleps, W.S. Enns-Bray, P. Guy, S.J. Ferguson, P.A. Cripton, and B. Helgason, “On the internal reaction forces, energy absorption, and fracture in the hip during simulated sideways fall impact,” PloS one13(8), p.e0200952, August 2018.
  • K.T. Kim, F. Streijger, N. Manouchehri, K. So, K. Shortt, E.B. Okon, S. Tigchelaar, P.A. Cripton, and B.K. Kwon, “Review of the UBC Porcine Model of Traumatic Spinal Cord Injury,” Journal of Korean Neurosurgical Society61(5), p.539, August 2018.
  • I. Fleps, M. Vuille, A. Melnyk, S.J. Ferguson, P. Guy, B. Helgason, and P.A. Cripton, “A novel sideways fall simulator to study hip fractures ex vivo,” PLoS one13(7), p.e0201096, July 2018.
  • D.M. Dressler, C.R. Dennison, T. Whyte, and P.A. Cripton, “A novel helmet-mounted device for reducing the potential of catastrophic cervical spine fractures and spinal cord injuries in head-first impacts,” Clinical Biomechanics, April 2018.
  • T. Tang, P.A. Cripton, P. Guy, H.A. McKay, and R. Wang, “Clinical hip fracture is accompanied by compression induced failure in the superior cortex of the femoral neck,” Bone108, pp.121-131, March 2018.
  • W.H. Cheng, S. Stukas, K.M. Martens, D.R. Namjoshi, E.B. Button, A. Wilkinson, A. Bashir, J. Robert, P.A. Cripton, and C.L. Wellington, “Age at injury and genotype modify acute inflammatory and neurofilament-light responses to mild CHIMERA traumatic brain injury in wild-type and APP/PS1 mice,” Experimental neurology301, pp.26-38, March 2018.
  • N.L. Ramo, S.S. Shetye, F. Streijger, J.H. Lee, K.L. Troyer, B.K. Kwon, P.A. Cripton, and C.M. Puttlitz, “Comparison of in vivo and ex vivo viscoelastic behavior of the spinal cord,” Acta biomaterialia68, pp.78-89, March 2018.
  • W.S. Enns-Bray, H. Bahaloo, I. Fleps, O. Ariza, S. Gilchrist, R. Widmer, P. Guy, H. Pálsson, Ferguson, S.J., Cripton, P.A. and Helgason, B., 2018. Material mapping strategy to improve the predicted response of the proximal femur to a sideways fall impact. Journal of the mechanical behavior of biomedical materials78, pp.196-205, February 2018.
  • F. Streijger, K. So, K. Manouchehri, S. Tigchelaar, J.H. Lee, E.B. Okon, K. Shortt, S.E. Kim, K. McInnes, P.A. Cripton, and B.K. Kwon, “Changes in pressure, hemodynamics, and metabolism within the spinal cord during the first 7 days after injury using a porcine model,” Journal of neurotrauma34(24), pp.3336-3350, December 2017.
  • H.M. Gustafson, A.D. Melnyk, G.P. Siegmund and P.A. Cripton, “Damage Identification on Vertebral Bodies During Compressive Loading Using Digital Image Correlation,” Spine42(22), pp.E1289-E1296, November 2017.
  • T. Whyte, A.D. Melnyk, C. Van Toen, J. Street, T.R. Oxland, and P.A. Cripton, “The Effect of Translational Constraint on Cervical Spine Kinetics, Kinematics and Canal Occlusions in Impacts Inducing Lateral Bending,” In IRCOBI Conference Proceedings, September 2017.
  • D.R. Namjoshi, W.H. Cheng, A. Bashir, A. Wilkinson, S. Stukas, K.M. Martens, T. Whyte, Z.A. Abebe, K.A. McInnes, P.A. Cripton, and C.L. Wellington, “Defining the biomechanical and biological threshold of murine mild traumatic brain injury using CHIMERA (Closed Head Impact Model of Engineered Rotational Acceleration),” Experimental Neurology, vol. 292, pp. 80-91, 2017.
  • H.M. Gustafson, P.A. Cripton, S.J. Ferguson, and B. Helgason, “Comparison of specimen-specific vertebral body finite element models with experimental digital image correlation measurements,” Journal of the Mechanical Behavior of Biomedical Materials, vol. 65, pp. 801-807, 2017.
  • C.A. Stuart, D. Richards, and P.A. Cripton, “Injuries at the Whistler Sliding Center: a 4-year retrospective study.,” Br J Sports Med, vol. 50, pp. 62-70, 2016.
  • P.A. Cripton, H. Shen, J.R. Brubacher, M. Chipman, S.M. Friedman, M.A. Harris, M. Winters, C.C. Reynolds, M.D. Cusimano, S. Babul, and K. Teschke , “Severity of urban cycling injuries and the relationship with personal, trip, route and crash characteristics: analyses using four severity metrics.,” BMJ Open, vol. 5(1), 2015.
  • D.R. Namjoshi, W.H. Cheng, K.A. McInnes, K.M. Martens, M. Carr, A. Wilkinson, J. Fan, J. Robert, A. Hayat, P.A. Cripton, and C.L. Wellington, “Merging pathology with biomechanics using CHIMERA (Closed-Head Impact Model of Engineered Rotational Acceleration): a novel, surgery-free model of traumatic brain injury.,” Molecular Neurodegeneration, vol. 9, pp. 55, 2014.
  • C. Van Toen, J. Street, T.R. Oxland, and P.A. Cripton, “Cervical spine injuries and flexibilities following axial impact with lateral eccentricity,” European Spine Journal, vol. 24, pp. 136-147, 2015.
  • R.S. Newell, G.P. Siegmund, J.S. Blouin, J. Street J, and P.A. Cripton, “Cervical vertebral realignment when voluntarily adopting a protective neck posture,” Spine, vol. 39(15), pp. E885–E893, 2014.
  • P.A. Cripton, D.M. Dressler, C.A. Stuart, C.R. Dennison, and D. Richards, “Bicycle helmets are highly effective at preventing head injury during head impact: Head-form accelerations and injury criteria for helmeted and unhelmeted impacts.,” Accident Analysis & Prevention, vol.70, pp. 1-7, 2014.
  • B. Helgason, S. Gilchrist, O. Ariza, J.D. Chak, G. Zheng, R.P. Widmer, S.J. Ferguson, P. Guy, and P.A. Cripton, “Development of a balanced experimental–computational approach to understanding the mechanics of proximal femur fractures,” Medical Engineering & Physics, vol.36(6), pp. 793-799, 2014.
  • P.A. Cripton, “Perspective: Protecting the neck.” Nature, vol. 503(7475), pp. S13, 2013.

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