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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Janicek, John C. Wilson, David A. Carson, William L. Kramer, Joanne |
| Description | Country affiliation: United States Author Affiliation: Janicek JC ( University of Missouri Comparative Orthopaedic Laboratory, Columbia, MO, USA. jcjanicek@yahoo.com) |
| Abstract | OBJECTIVE: To compare stiffness and strength of a dynamic condylar screw plate combined with dorsal broad dynamic compression plate (DCS-bDCP) fixation with double broad dynamic compression plate (dbDCP) fixation used to repair oblique distal fractures of adult equine radii. STUDY DESIGN: Experimental. SAMPLE POPULATION: Adult equine radii (n=10 pair). METHODS: An unconstrained three-dimensional loading-measurement system was used to determine stiffness of a 50 mm long intact, and then DCS-bDCP or dbDCP-plated osteotomized/ostectomized segment of radii when subjected to a nondestructive sequence of compression, torsion, and lateral-to-medial (LM), medial-to-lateral (ML), cranial-to-caudal (CrCa), and caudal-to-cranial (CaCr) bending. Uniform load over the entire length of construct identified its weakest characteristics during torsion and LM and CrCa bending to failure. RESULTS: No difference was observed between osteotomized/ostectomized DCS-bDCP and dbDCP construct stiffness for all 6 loading modes, and strength for all 3 failure loads. Ostectomized DCS-bDCP and dbDCP construct stiffness was significantly lower than osteotomized radii, the latter approaching intact for axial, LM, and CrCa bending. Most frequent failure was bone fracture through exit site of a screw located adjacent to osteotomy/ostectomy. CONCLUSIONS: DCS-DCP and dbDCP constructs had comparable strength and stiffness when repairing osteotomies/ostectomies in equine adult radius bone. Fracture reduction increased stiffness that approached intact bone for loads that placed the unplated side in compression. CLINICAL RELEVANCE: DCS-bDCP and dbDCP constructs are comparable in stiffness and strength when applied to oblique distal diaphyseal osteotomies/ostectomies in equine radius bone. However, the DCS's localized effect on distal epiphyseal structure because of additional bone removal remains to be investigated under in vivo articular loading conditions. |
| File Format | HTM / HTML |
| ISSN | 01613499 |
| Issue Number | 6 |
| Volume Number | 38 |
| e-ISSN | 1532950X |
| Journal | Veterinary Surgery |
| Language | English |
| Publisher | Wiley |
| Publisher Date | 2009-08-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline General Surgery Discipline Veterinary Medicine Bone Plates Veterinary Fracture Fixation, Internal Horses Surgery Osteotomy Radius Fractures Animals Biomechanical Phenomena Cadaver Forelimb Injuries Instrumentation Methods Random Allocation Comparative Study Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Veterinary |
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