Title :
Contour affects the stress and tribology of knee prostheses
Author :
Pal, S. ; Roychowdhury, A.
Author_Institution :
Dept. of Mech. Eng., Jadavpur Univ., Calcutta, India
Abstract :
The failure of the soft UHMWPE (ultra-high molecular weight polyethylene) bearing surface liner in total knee arthoplasty is quite common. We looked at the contact stress which, to a great extent, determines the tribological properties. We have seen, by using the FEM (finite element method) technique, that the average shear stress and contact stress depend on the contour of the mating pair of the metal or ceramic to the polyethylene
Keywords :
biomechanics; finite element analysis; mechanical contact; polymers; prosthetics; shear strength; average shear stress; ceramic; contact stress; finite element method; knee prostheses; mating pair contour; metal; soft UHMWPE bearing surface liner failure; total knee arthoplasty; tribological properties; ultra-high molecular weight polyethylene; Ceramics; Erbium; Knee; Large Hadron Collider; Legged locomotion; Stress; Tribology;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995 and 14th Conference of the Biomedical Engineering Society of India. An International Meeting, Proceedings of the First Regional Conference., IEEE
Conference_Location :
New Delhi
Print_ISBN :
0-7803-2711-X
DOI :
10.1109/RCEMBS.1995.532974
