Biomechanical characteristics of regenerated cortical bone in the canine mandible
Identifieur interne : 004950 ( Main/Exploration ); précédent : 004949; suivant : 004951Biomechanical characteristics of regenerated cortical bone in the canine mandible
Auteurs : Uriel Zapata [États-Unis, Colombie] ; Lynne A. Opperman [États-Unis] ; Elias Kontogiorgos [États-Unis] ; Mohammed E. Elsalanty [États-Unis] ; Paul C. Dechow [États-Unis]Source :
- Journal of Tissue Engineering and Regenerative Medicine [ 1932-6254 ] ; 2011-07.
Descripteurs français
- Wicri :
- topic : Droit d'auteur.
English descriptors
- KwdEn :
- Anatomical positions, Ashman, Basal, Basal positions, Biomech, Biomechanical, Bone, Bone specimens, Bony tissue, Buccal, Buccal side, Canine, Canine model, Clin, Clin orthop, Consolidation period, Control bone, Control side, Control sides, Control specimens, Copyright, Cortical, Cortical bone, Cortical bone specimens, Cortical samples, Dechow, Distraction, Distraction osteogenesis, Elastic, Elastic moduli, Elastic modulus, Elastic properties, John wiley sons, Lingual, Lingual sides, Mandible, Mandibular, Mandibular distraction osteogenesis, Mandibular reconstruction, Maxillofac, Maximum stiffness, Mechanical properties, Modulus, Oral maxillofac surg, Orthop, Osteogenesis, Principal direction, Reconstruction plate, Regen, Relative positions, Shear moduli, Statistical differences, Stiffness, Surg, Tissue level, Transport disc.
- Teeft :
- Anatomical positions, Ashman, Basal, Basal positions, Biomech, Biomechanical, Bone, Bone specimens, Bony tissue, Buccal, Buccal side, Canine, Canine model, Clin, Clin orthop, Consolidation period, Control bone, Control side, Control sides, Control specimens, Copyright, Cortical, Cortical bone, Cortical bone specimens, Cortical samples, Dechow, Distraction, Distraction osteogenesis, Elastic, Elastic moduli, Elastic modulus, Elastic properties, John wiley sons, Lingual, Lingual sides, Mandible, Mandibular, Mandibular distraction osteogenesis, Mandibular reconstruction, Maxillofac, Maximum stiffness, Mechanical properties, Modulus, Oral maxillofac surg, Orthop, Osteogenesis, Principal direction, Reconstruction plate, Regen, Relative positions, Shear moduli, Statistical differences, Stiffness, Surg, Tissue level, Transport disc.
Abstract
To test the mechanical properties of regenerate cortical bone created using mandibular bone transport (MBT) distraction, five adult male American foxhound dogs underwent unilateral distraction of the mandible with a novel MBT device placed to linearly repair a 30–35 mm bone defect. The animals were sacrificed 12 weeks after the beginning of the consolidation period. Fourteen cylindrical specimens were taken from the inner (lingual) and outer (buccal) plates of the reconstructed mandible and 21 control specimens were removed from the contralateral aspect of the mandible. The mechanical properties of the 35 cylindrical cortical bone specimens were assessed by using a non‐destructive pulse ultrasound technique. Results showed that all of the cortical mechanical properties exhibit higher numerical values on the control side than the MBT regenerate side. In addition, both densities and the elastic moduli in the direction of maximum stiffness of the regenerate cortical bone specimens are higher on the lingual side than the buccal side. Interestingly, there is no statistical difference between elastic modulus (E1 and E2) in orthogonal directions throughout the 35 cortical specimens. The data suggest that not only is the regenerate canine cortical bone heterogeneous, but the elastic mechanical properties tend to approximate transverse isotropy at a tissue level, as opposed to control cortical bone, which is orthotropic. In addition, the elastic mechanical properties are higher not only on the control side but also in the lingual anatomical position, suggesting a stress shielding effect from the presence of the reconstruction plate. Copyright © 2011 John Wiley & Sons, Ltd.
Url:
- https://api.istex.fr/document/4F66A3FF7677F6E649F6EDC9CF9D78B047723461/fulltext/pdf
- http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3116951
DOI: 10.1002/term.347
Affiliations:
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The animals were sacrificed 12 weeks after the beginning of the consolidation period. Fourteen cylindrical specimens were taken from the inner (lingual) and outer (buccal) plates of the reconstructed mandible and 21 control specimens were removed from the contralateral aspect of the mandible. The mechanical properties of the 35 cylindrical cortical bone specimens were assessed by using a non‐destructive pulse ultrasound technique. Results showed that all of the cortical mechanical properties exhibit higher numerical values on the control side than the MBT regenerate side. In addition, both densities and the elastic moduli in the direction of maximum stiffness of the regenerate cortical bone specimens are higher on the lingual side than the buccal side. Interestingly, there is no statistical difference between elastic modulus (E1 and E2) in orthogonal directions throughout the 35 cortical specimens. The data suggest that not only is the regenerate canine cortical bone heterogeneous, but the elastic mechanical properties tend to approximate transverse isotropy at a tissue level, as opposed to control cortical bone, which is orthotropic. In addition, the elastic mechanical properties are higher not only on the control side but also in the lingual anatomical position, suggesting a stress shielding effect from the presence of the reconstruction plate. Copyright © 2011 John Wiley & Sons, Ltd.</div></front></TEI><affiliations><list><country><li>Colombie</li><li>États-Unis</li></country><region><li>Géorgie (États-Unis)</li><li>Texas</li></region></list><tree><country name="États-Unis"><region name="Texas"><name sortKey="Zapata, Uriel" sort="Zapata, Uriel" uniqKey="Zapata U" first="Uriel" last="Zapata">Uriel Zapata</name></region><name sortKey="Dechow, Paul C" sort="Dechow, Paul C" uniqKey="Dechow P" first="Paul C." last="Dechow">Paul C. Dechow</name><name sortKey="Dechow, Paul C" sort="Dechow, Paul C" uniqKey="Dechow P" first="Paul C." last="Dechow">Paul C. Dechow</name><name sortKey="Dechow, Paul C" sort="Dechow, Paul C" uniqKey="Dechow P" first="Paul C." last="Dechow">Paul C. Dechow</name><name sortKey="Elsalanty, Mohammed E" sort="Elsalanty, Mohammed E" uniqKey="Elsalanty M" first="Mohammed E." last="Elsalanty">Mohammed E. Elsalanty</name><name sortKey="Kontogiorgos, Elias" sort="Kontogiorgos, Elias" uniqKey="Kontogiorgos E" first="Elias" last="Kontogiorgos">Elias Kontogiorgos</name><name sortKey="Opperman, Lynne A" sort="Opperman, Lynne A" uniqKey="Opperman L" first="Lynne A." last="Opperman">Lynne A. Opperman</name><name sortKey="Zapata, Uriel" sort="Zapata, Uriel" uniqKey="Zapata U" first="Uriel" last="Zapata">Uriel Zapata</name></country><country name="Colombie"><noRegion><name sortKey="Zapata, Uriel" sort="Zapata, Uriel" uniqKey="Zapata U" first="Uriel" last="Zapata">Uriel Zapata</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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