A comparison of conventional compression plates and locking compression plates using cantilever bending in an ilial fracture model.
Vet Comp Orthop Traumatol
; 27(6): 430-5, 2014.
Article
de En
| MEDLINE
| ID: mdl-25345445
ABSTRACT
OBJECTIVES:
The purpose of this study was to compare the stiffness, yield load, ultimate load at failure, displacement at failure, and mode of failure in cantilever bending of locking compression plates (LCP) and dynamic compression plates (DCP) in an acute failure ilial fracture model. Our hypothesis was that the LCP would be superior to the DCP for all of these biomechanical properties.METHODS:
Ten pelves were harvested from healthy dogs euthanatized for reasons unrelated to this study and divided into two groups. A transverse osteotomy was performed and stabilized with either a 6-hole DCP applied in compression or a 6-hole LCP. Pelves were tested in cantilever bending at 20 mm/min to failure and construct stiffness, yield load, ultimate load at failure, displacement at failure, and mode of failure were compared.RESULTS:
The mean stiffness of DCP constructs (193 N/mm [95% CI 121 - 264]) and of LCP constructs (224 N/mm [95% CI 152 - 295]) was not significantly different. Mean yield load of DCP constructs (900 N [95% CI 649 -1151]) and of LCP constructs (984 N [95% CI 733 -1235]) was not significantly different. No significant differences were found between the DCP and LCP constructs with respect to mode of failure, displacement at failure, or ultimate load at failure. CLINICALSIGNIFICANCE:
Our study did not demonstrate any differences between DCP and LCP construct performance in acute failure testing in vitro.Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Plaques orthopédiques
/
Fractures osseuses
/
Ilium
Limites:
Animals
Langue:
En
Journal:
Vet Comp Orthop Traumatol
Sujet du journal:
MEDICINA VETERINARIA
/
ORTOPEDIA
/
TRAUMATOLOGIA
Année:
2014
Type de document:
Article