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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Kartik, M. Varadarajan Moynihan, Angela D’lima, Darryl Clifford, W. Colwell Harry, E. Rubash Li, Guoan |
| Copyright Year | 2008 |
| Abstract | Accurate knowledge of in vivo articular contact kinematics and contact forces is required to quantitatively understand factors limiting life of total knee arthroplasty (TKA) implants, such as polyethylene component wear and implant loosening [1]. Determination of in vivo tibiofemoral contact forces has been a challenging issue in biomechanics. Historically, instrumented tibial implants have been used to measure tibiofemoral forces in vitro [2] and computational models involving inverse dynamic optimization have been used to estimate joint forces in vivo [3]. Recently, D’Lima et al. reported the first in vivo measurement of 6DOF tibiofemoral forces via an instrumented implant in a TKA patient [4]. However this technique does not provide a direct estimation of tibiofemoral contact forces in the medial and lateral compartments. Recently, a dual fluoroscopic imaging system has been used to accurately determine tibiofemoral contact locations on the medial and lateral tibial polyethylene surfaces [5]. The objective of this study was to combine the dual fluoroscope technique and the instrumented TKAs to determine the dynamic 3D articular contact kinematics and contact forces on the medial and lateral tibial polyethylene surfaces during functional activities. |
| Sponsorship | Bioengineering Division |
| Starting Page | 859 |
| Ending Page | 860 |
| Page Count | 2 |
| File Format | |
| ISBN | 9780791843215 |
| DOI | 10.1115/SBC2008-192613 |
| Volume Number | ASME 2008 Summer Bioengineering Conference, Parts A and B |
| Conference Proceedings | ASME 2008 Summer Bioengineering Conference |
| Language | English |
| Publisher Date | 2008-06-25 |
| Publisher Place | Marco Island, Florida, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Knee Biomechanics Bearings Weight (mass) Imaging Wear Kinematics Arthroplasty Optimization |
| Content Type | Text |
| Resource Type | Article |
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