[Stress distribution analysis of the surface of condyle during simulated fracture healing of the neck of condyle by miniplate osteosynthesis].
OBJECTIVE
To find the reasons why patients always have temporomandibular disorders (TMD) after condylar fracture by analyzing the stress distribution change of the condylar surface whose subcondylar fracture ware fixed by miniplate during the whole healing process.


METHODS
Analyzing the stress distribution change of the condylar surface whose subcondylar fracture were fixed by miniplate during the whole healing process by three-dimension finite element method (3D FEM).


RESULTS
During the whole healing process of the fracture, the miniplate osteosynthesis was helpful to the biomechanics environment rehabilitation of the condylar local, but it still had difference with normal after fixing 12 weeks long.


CONCLUSIONS
The difference of stress distribution of condylar surface that fractured and fixed by miniplate with normal may be part of the reason of TMD after the subcondylar fracture miniplate osteosynthesis.
Yang
Zhuang-qun
ZQ
Dept of Oral and Maxillofacial Surgery, Xi'an Jiaotong University, China.
Hu
Xiao-ui
XU
Wang
Zheng-hui
ZH
Li
Peng
P
Tu
Jun-bo
JB
Ling
Wei
W
D000328:Adult; D005593:Fracture Fixation, Internal; D017102:Fracture Healing; D006801:Humans; D008335:Mandibular Condyle; D008337:Mandibular Fractures