Creep characteristics of tibial fractures with three internal and external fixation devices

doi:10.3969/j.issn.2095-4344.2016.48.009

Abstract

Abstract:

BACKGROUND: The creep mechanical properties of tibial fractures after fixation with intramedullary nails, steel plates and external fixation support are rarely reported.

OBJECTIVE: To analyze the creep characteristics of tibial fractures with three internal and external fixation devices to provide biomechanical parameters for the clinic.

METHODS: We simulated tibial fractures with intramedullary nails, steel plates, and external fixator. We performed axial compression creep tests on three sets of specimens on the electronic universal testing machine.

RESULTS AND CONCLUSION: The creep variables of intramedullary nail fixation group were 0.22%, and the creep variables of steel plate fixation group were 0.34% in 7 200 s. In the external fixation group, creep variables were 0.42% in 7 200 s. The creep variables were larger in the external fixation group than in the plate fixation and intramedullary nail fixation groups at 7 200 s (P < 0.05). The creep deformation was greater in the plate fixation group than that of intramedullary nail fixation group in 7 200 s (P < 0.05). The results suggested that creep characteristics of the external fixation, plate fixation and intramedullary nail fixation were all changed, but the changes were different.

中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

Key words: Tibial Fractures, External Fixators, Internal Fixators, Fracture Fixation, Intramedullary, Tissue Engineering

CLC Number:

R318

Wang Gang, Li Xin-ying, Zhang Shu-quan, Li Ya-jun. Creep characteristics of tibial fractures with three internal and external fixation devices[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(48): 7206-7211.

Figures/Tables 3

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