Lisfranc injuries affect at least 1 out of every 55,000 people each year. Although they
are rare foot injuries, their effects can be devastating. 20-40% of Lisfranc injuries are
missed upon first presentation. This increases the number of poor outcomes, resulting in a disproportionate number of malpractice lawsuits and compensation claims.
The Kingston Brace was designed to support an injured foot during a CT scan with the
goal of providing the diagnosing physician with the best diagnostic information possible.
A prototype was designed and built to support a variety of foot orientations in order to determine which orientation is optimal for Lisfranc joint CT scanning.
Three fresh frozen cadaver feet were put through several experiments with the Brace.
The 2D diagnostic quality of CT scans taken using the Kingston Brace was compared
against that of CT scans using the existing protocol. The Kingston Brace allows for a
greater visualization of the injured Lisfranc joint than the existing CT protocol. Lisfranc joint spreading was used as a measure of potential pain in injured patients. The joint spreading was minimal, suggesting that injured patients would not feel as much additional pain during imaging. Also, the adoption of the Kingston Brace resulted in no change in the morphological parameters resulting from more advanced 3D analysis.
The experimentally determined optimal Kingston Brace orientation was found to be 9◦
of plantarflexion and 13◦ of eversion. These orientations can be incorporated into the next generation of Kingston Brace design. / Thesis (Master, Mechanical and Materials Engineering) -- Queen's University, 2009-07-06 15:01:57.866
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:OKQ.1974/5438 |
| Date | 18 February 2010 |
| Creators | JONES, SIMON |
| Contributors | Queen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.)) |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English, English |
| Detected Language | English |
| Type | Thesis |
| Rights | This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner. |
| Relation | Canadian theses |
Page generated in 0.015 seconds