[Mechanical mechanism in plastic stage of fracture union--application of bone surface remodeling theory].
In this paper is presented a discussion on the mechanical mechanism in the plastic stage of fracture union. We adopt the bone surface remodeling theory in conjunction with finite element method, choose the strain energy density as mechanical stimulus, work at a three-dimensional finite element model, and then we investigate the mechanical mechanism in the plastic stage of fracture union in three types: exterior osteotylus, interior bony defect and exterior bony defect, using long bone surface remodeling software "BRSS97" we design. The results show that osteotylus can be completely absorbed, and bony defect can recover. For all the three types, the final bone configuration resembles normal state bone configuration. It proves that long bone configuration in the plastic stage of fracture union is the result of the adaptation of bone to loading environment.
Zhu
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X
Jilin University of Technology, Changchun 130025.
Bai
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X
D001696:Biomechanical Phenomena; D016723:Bone Remodeling / Q000502:physiology*; D020342:Finite Element Analysis; D017102:Fracture Healing / Q000502:physiology*; D006801:Humans; D008954:Models, Biological