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A finite element analysis approach to predicting intramedullary pressure during the insertion of prosthetic implants

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posted on 2021-05-22, 10:31 authored by Paul Saadetian
Fat embolism syndrome is a serious post-operative complication of orthopaedic procedures such as fracture fixation and total joint replacement. Fat embolism syndrome can be a result of increased intramedullary pressure during the insertion of prosthetic implants in long bones. A macro was developed that automates the creation of finite element models representing a simplified bone/fluid/implant system and a hammering event. The finite element models were validated by computing the peak stresses at various locations in the bone and comparing them to pressures measured at similar locations in experimental tests. Finite element models were used to test the effect of using hollow implants on intramedullary pressure in the bone, in some cases yielding an average reduction of 19.1%. It has been shown that it is acceptable to use finite element models for such parametric studies and that hollow implants have the potential to decrease intramedullary pressure during insertion.

History

Language

English

Degree

  • Master of Applied Science

Program

  • Mechanical and Industrial Engineering

Granting Institution

Ryerson University

LAC Thesis Type

  • Thesis

Thesis Advisor

Kamran Behdinan Marcello Papini M. Z. Saghir

Year

2005

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    Mechanical and Industrial Engineering (Theses)

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