Relationship of quadriceps tendon and the stability of external fixator in rabbit femur fracture model
10.3969/j.issn.2095-4344.2016.39.009
- VernacularTitle:股骨骨折模型兔外固定架稳定性与股四头肌肌腱的关系
- Author:
Meng ZHANG
;
Junqiang WEI
;
Jianwei DUAN
;
Shi YAN
- Publication Type:Journal Article
- From:
Chinese Journal of Tissue Engineering Research
2016;20(39):5834-5839
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND:In rabbit femur fracture model experiment, there are a few studies on whether quadriceps tendon wil affect the stability of the fixed device. OBJECTIVE:To analyze the effects of quadriceps tendon to the stability of external fixator in rabbit models of femur fracture. METHODS:The 48 New Zealand white rabbits were randomly divided into two groups. External fixator was used to make fracture model. In the experiment group, quadriceps tendon was cut. In the control group, quadriceps tendon was retained. 2 weeks later, X-ray examination was utilized to observe the number of failed external fixator in both groups from modeling to success. RESULTS AND CONCLUSION:(1) X-ray examination:2 weeks after model establishment, external fixation frame screw was free from femur in one rabbit of the experiment group, and seven rabbits in the control group. Of them, one screw was broken. Threaded portion retained in the femur. (2) External fixation failure rate:failed external fixator was found in one rabbit in the experiment group, resulting in a failure rate of 4%, and 12 rabbits in the control group, resulting in a failure rate of 50%(P<0.05). These findings suggested that cutting off the rabbit quadriceps tendon can effectively ensure the stability of the external fixator, and indirectly improve success rate of the experiment.
