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In-Vivo Tibiofemoral Contact Stress in the Knee After TKA

[+] Author Affiliations
Jeremy F. Suggs

Massachusetts General Hospital/Harvard Medical School, Boston, MAMassachusetts Institute of Technology, Cambridge, MA

George R. Hanson, Guoan Li

Massachusetts General Hospital/Harvard Medical School, Boston, MA

Paper No. SBC2007-176664, pp. 661-662; 2 pages
doi:10.1115/SBC2007-176664
From:
  • ASME 2007 Summer Bioengineering Conference
  • ASME 2007 Summer Bioengineering Conference
  • Keystone, Colorado, USA, June 20–24, 2007
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-4798-5

abstract

Polyethylene wear is a leading cause of failure in total knee arthroplasty (TKA). Knowing the stresses experienced by the polyethylene would be pivotal information for efforts to improve polyethylene longevity. Previous investigations into the stress and wear of the polyethylene have required estimates of in-vivo conditions [1]. This work investigates the feasibility of using actual in-vivo kinematics obtained using dual fluoroscopy as boundary conditions for finite element analysis of the polyethylene.

Topics: Stress , Knee

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