Three-dimensional finite element analysis of 3 different treatment methods for mandibular symphyseal fracture combined with bilateral intracapsular condylar fractures

Abstract

Abstract: PURPOSE: To evaluate the width stability of mandibular symphyseal fracture combined with bilateral intracapsular condylar fractures treated with 3 different methods. METHODS: A heterogeneous mandible model was established by using empirical express, and the three different treatment methods were simulated. RESULTS: Compared with other conditions, the model had little displacement when the condylar fractures were treated surgically with preservation of lateral pterygoid muscle attachment, just like using the lag screw for fixation. CONCLUSIONS: For the treatment of mandibular symphyseal fracture combined with bilateral intracapsular condylar fractures, 2 mini plates can provide enough stability when the bilateral intracapsular condylar fractures are fixed with preservation of the lateral pterygoid muscle attachment.

Key words: Mandibular symphyseal fracture, Mandibular intracapsular fracture, Condylar dislocation, Mandibular width, Finite element

CLC Number:

R782.4

XU Xiao-feng, SU Jia-nan, DAI Jie-wen, SHI Jun, XU Bing. Three-dimensional finite element analysis of 3 different treatment methods for mandibular symphyseal fracture combined with bilateral intracapsular condylar fractures[J]. China Journal of Oral and Maxillofacial Surgery, 2016, 14(5): 409-412.

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