Biomechanical evaluation of internal fixation of different anterior canulated screws for the treatment of type odontoid fracture / 中国组织工程研究
Chinese Journal of Tissue Engineering Research
;
(53): 4377-4380, 2009.
Article
Dans Chinois
| WPRIM
| ID: wpr-406551
ABSTRACT
BACKGROUND:
Antedor canulated screw has been considered an ideal method to treat odontoid fracture.OBJECTIVE:
To compare the biomechanical properties of different anterior screws.DESIGN,TIME ANDSETTING:
A randomized contrast study was performed at the Biomechanics Laboratory of Southern Medical University from March to September 2006.MATERIALSDouble-thread canulated screws and single-thread canulated screws were made of titanium alloy and provided by Shuangyang Medical Apparatus Co.,Ltd.,Suzhou.METHODS:
A total of head-neck complexes (C0-C3) which were collected from 20 corpses were maintained in formaldehyde for less than 3 months;thereafter,the muscles and ligaments were removed to obtain the axis specimens so as to make type Ⅱ odontoid fracture models.The fracture samples were individually treated with double-thread and single-thread canulated screws,with 10 samples for each group.MAIN OUTCOMEMEASURES:
The shear stiffness and the maximum resistance of the two kinds of screw were tested in this study.RESULTS:
The shear stiffness of the double-thread screw group was significantly higher than the single-thread screw group (P<0.01 );however,there was no significant different in the maximum resistance between the two groups (P>0.05).CONCLUSION:
Double-thread canulated screws have a strong biomechanical stability for treating odontoid fracture;therefore,the first choice of the internal fixation should be double-thread canuiated screws for patients with osteoporosis or those who are susceptible to expanded screw pathway during surgical procedures.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Type d'étude:
Essai clinique contrôlé
langue:
Chinois
Texte intégral:
Chinese Journal of Tissue Engineering Research
Année:
2009
Type:
Article
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