Critical Reviews™ in Biomedical Engineering

ISSN for PRINT: 0278-940X

For Online Access

Best Paper Award Selection - Editorial Board Site

2000, Volume28

Issue 3&4

328 pages

Issue price - $532.00

A. Roychowdhury
Applied Mechanics Department, B. E. College (D.U)

S. Pal
School of BioScience and Engineering, Jadavpur University, Calcutta-700 032

Subrata Saha
Director of Musculoskeletal Research, Department of Orthopaedic Surgery and Rehabilitation Medicine, SUNY Downstate Medical Center, 450 Clarkson Ave, Brooklyn, New York 11203, USA

To design a temporal mandibular joint (TMJ), the designer should pay attention to the range of movement in the joint, the strength of the joint, and the size of the implant should conform, so that it does not hamper facial configuration. As a number of designs are available, in this study we have considered one of the most common and widely used implants for analysis.
The main objective of this study is to examine the stress-strain behavior at the implant and what is happening at the implant bone interface. We have also examined whether implant material can be replaced by UHMWPE (ultra high molecular weight polyethylene) instead of titanium or Co-Cr-Mo alloy. Whether the change of positions of the screw used for fixation has any effect or not, we have modeled it considering actual shape and size, then divided it into number finite elements by using a FEM package. An appropriate surgical construct was modeled and loaded and studied for different parameters. We have shown that the metallic prostheses are good from a stress-strain point of view and UHMWPE cannot be used as such.

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