Effect of polyethylene insert thickness and implant material on micromotions at the bone-implant surface with cemented TKA: A finite element study.

Autor: Ravishanker, Baliga B., Raghuvir, Pai B., Satish, Shenoy B., Sharath, Rao K., Aatmananda, Hegde K.
Předmět:
Zdroj: Journal of Computational Methods in Sciences & Engineering; 2021, Vol. 21 Issue 3, p555-561, 7p
Abstrakt: Reducing the implant stiffness by means of a lower moduli implant material or using an all-polyethylene implant systems have been shown to significantly reduce stress shielding and corresponding bone loss and failure [[4], [12], [21]]. However, in both MB and AP tray cases, polyethylene insert thickness had no significant effect ( HT p ht 0.05) on the obtained micromotions. However, implant material was found to strongly affect ( HT p ht 0.001) the micromotions in the regions considered. Polyethylene insert thickness was found to have no significance ( HT p= ht 0.845) on the micromotions caused. [Extracted from the article]
Databáze: Complementary Index