| Abstract | BACKGROUND: Arthrodesis of the great toe metatarsophalangeal joint for osteoarthritis usually involves internal fixation. Ideally, the fixation method should be reproducible, leading to a high rate of fusion and minimal complications. METHODS: This biomechanical study compares circumferential wire and screw fixation methods of arthrodesis. RESULTS: The two arthrodesis models have remarkably similar limits of elastic and plastic deformation. However, in the screw, failure by permanent deformation occurs at a load six times higher than the wire. CONCLUSIONS: The use of circumferential wire fixation for osteoporotic bones in which screw purchase is poor is reasonable and for quality bone, screw fixation may be preferable. |
| Authors | Adnan A Faraj, Asheem Naraen, Peter Twigg
(Affiliation: Airedale General Hospital, Department of Orthopaedics, Skipton Road, Keighley, West Yorkshire BD20 6TD, and Medical Engineering Department, Biomechanical Laboratory, University of Bradford, United Kingdom. shevanfaraj at hotmail.com)
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| Journal | Foot & ankle international / American Orthopaedic Foot and Ankle Society [and] Swiss Foot and Ankle Society
(Foot Ankle Int)
Vol. 28
Issue 1
Pg. 89-91
(Jan 2007)
ISSN: 1071-1007 United States |
| PMID | 17257545
(Publication Type: Comparative Study, Journal Article)
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| Topics |
- Arthrodesis
(instrumentation, methods)
- Biomechanics
- Bone Screws
- Bone Wires
- Hallux Rigidus
(physiopathology, surgery)
- Humans
- Models, Biological
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