Biomechanical evaluation of four surgical techniques for ventral stabilization of the atlantoaxial joint in dogs
Acta cir. bras
; 38: e383223, 2023. tab, graf, ilus
Article
in English
| LILACS, VETINDEX
| ID: biblio-1513547
Responsible library:
BR68.1
Localization: BR68.1
ABSTRACT
Purpose:
This study compared, through biomechanical evaluation under ventral flexion load, four surgical techniques for ventral stabilization of the atlantoaxial joint in dogs.Methods:
In total, 28 identical atlantoaxial joint models were created by digital printing from computed tomography images of a dog, and the specimens were divided into four groups of seven. In each group, a different technique for ventral stabilization of the atlantoaxial joint was performed transarticular lag screws, polyaxial screws, multiple screws and bone cement (polymethylmethacrylatePMMA), and atlantoaxial plate. After the stabilization technique, biomechanical evaluation was performed under ventral flexion load, both with a predefined constant load and with a gradually increasing load until stabilization failure.Results:
All specimens, regardless of stabilization technique, were able to support the predefined load without failing. However, the PMMA method provided significant more rigidity (p ≤ 0.05) and also best resisted the gradual increase in load, supporting a significantly higher maximum force (p ≤ 0.05). There was no statistical difference in flexural strength between the transarticular lag screws and plate groups. The polyaxial screws method was significantly less resistant to loading (p ≤ 0.05) than the other groups.Conclusions:
The PMMA technique had biomechanical advantages in ventral atlantoaxial stabilization over the other evaluated methods.
Full text:
Available
Collection:
International databases
Database:
LILACS
/
VETINDEX
Main subject:
Atlanto-Axial Joint
/
Biomechanical Phenomena
/
Dog Diseases
Limits:
Animals
Language:
English
Journal:
Acta cir. bras
Journal subject:
CIRURGIA GERAL
/
Procedimentos Cir£rgicos Operat¢rios
Year:
2023
Document type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Estadual Paulista Júlio de Mesquita Filho/BR
/
Universidade Federal de Jataí/BR