In lieu of growing requirement of total knee arthroplasty (TKA), we represent an effective approach to establish material-model optimisation of TKA. In the present study, we have proposed different computer-aided designing models in combination of metals, ceramics and polymers of knee prosthesis, and it illustrates the best material-model for working and life-span. New class of design features consisting of perforated surface in ‘Without Stem but attached Base Connector (WSBC)’, ‘Without Stem Without Base Connector (WSWBC)’, ‘Double Stem Without Base Connector (DSWBC)’ and ‘Double Stem with Base Connector (DSBC)’ is proposed and performed finite element analysis (FEA) under static load of 80 KgF. Lowest deformation and minimum strain comprises in case of zirconia-toughened alumina (ZTA) femur and tibial prototypes in comparison to identical combination of Ti6Al4V, SS316, CoCrMo and ZrO2 prototypes. In consideration of design, dimension and material features, ZTA-based Double Stem with Base Connector (DSBC) femur, UHMWPE articulating insert and ZTA tibial combination eventually exhibits higher degree of performance under compressive mode of loading. Optimised combination of material-model promotes the functional ability and thus expected reduction of re-surgery for younger patients.
Journal of the Australian Ceramic Society – Springer Journals
Published: Dec 21, 2017