Interface contact profiles of a novel locking plate and its effect on fracture healing in goat / 中华创伤杂志(英文版)
Chinese Journal of Traumatology
;
(6): 240-243, 2010.
Article
Dans Anglais
| WPRIM
| ID: wpr-272913
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the interface characteristics of the new-designed locking plate (LP) and limited contact-dynamic compression plate (LC-DCP) and compare the fracture healing between LP and LC-DCP in a goat tibia fracture model.</p><p><b>METHODS</b>Eight-hole LP and LC-DCP were applied to fix fresh goat tibiae in a reproducible manner. The average pressure, force and interface contact area were calculated using Fuji prescale pressure sensitive film interposed among the plate and the bone and image analysis system. Eight-hole LP and LC-DCP were applied to each tibia in a goat tibia fracture model. The fracture healing was evaluated by X-ray photography at postoperative 8 weeks. The goats were sacrificed at postoperative 12 weeks. Three-point bending test was conducted in the tibiae.</p><p><b>RESULTS</b>The interface contact of LP system was smaller than that of LC-DCP (P < 0.05), while interface contact force of LP system was higher than that of LC-DCP (P < 0.05). Radiographs revealed that the fracture line disappeared in the LP group, while the fracture line was visible in DCP group at postoperative 8 weeks. At postoperative 12 weeks, the bending strength and bending load of fractured tibia were higher in LP group than in DCP group, respectively.</p><p><b>CONCLUSION</b>The new-designed locking plate can significantly decrease the contact area on the bone interface, which further provides better fracture healing than conventional plates.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Chirurgie générale
/
Tibia
/
Fractures du tibia
/
Phénomènes biomécaniques
/
Plaques orthopédiques
/
Capra
/
Fixateurs internes
/
Consolidation de fracture
/
Ostéosynthèse interne
Type d'étude:
Étude pronostique
Limites du sujet:
Animaux
langue:
Anglais
Texte intégral:
Chinese Journal of Traumatology
Année:
2010
Type:
Article
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