The Virtual Knee is a 3-D, dynamic, physics-based software that simulates in vivo functional activities for the purpose of evaluating the kinematic and kinetic performance of TKR designs. Implant models are virtually implanted onto a lower-leg purdue-like knee simulator that is driven through activities including gait and deep knee bend using active quadriceps and hamstring actuators. The surrounding soft tissues, including LCL, MCL, and capsule, are modeled. By varying parameters such as implant geometry, ligament tensions, component positioning, and patient anthropometrics, this complex system can be understood, which allows the design of better-performing implants.
KeywordsTotal Knee Replacement Physical Testing Quadriceps Tendon Laxity Test Wear Simulator
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- 3.Biden E, O’Connor J (1990) Knee ligaments: structure, function, injury, and repair. Raven, New YorkGoogle Scholar
- 4.Zachman NJ (1977) Design of a load simulator for the dynamic evaluation of prosthetic knee joints. MS Thesis. Mechanical Engineering, Purdue University, West Lafayette, INGoogle Scholar
- 7.Winter D (1990) Biomechanics and motor control of human movement. Wiley-Interscience, New YorkGoogle Scholar
- 9.Masson M et al (1996) Computer modeling of articular contact for assessing total knee replacement constraint criteria. 10th Conference of the European Society of Biomechanics, LeuvenGoogle Scholar
- 12.Fregly BJ et al (2003) Computational prediction of in vivo wear in total knee replacements. Proc 2003 Summer Bioengineering Conference, American Society of Mechanical Engineers, New YorkGoogle Scholar