The investigation of bone fracture healing under intramembranous and endochondral ossification
AuthorGhimire, S; Miramini, S; Edwards, G; Rotne, R; Xu, J; Ebeling, P; Zhang, L
Source TitleBone Reports
Document TypeJournal Article
CitationsGhimire, S., Miramini, S., Edwards, G., Rotne, R., Xu, J., Ebeling, P. & Zhang, L. (2021). The investigation of bone fracture healing under intramembranous and endochondral ossification. BONE REPORTS, 14, https://doi.org/10.1016/j.bonr.2020.100740.
Access StatusOpen Access
Open Access at PMChttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC7772545
After trauma, fractured bone starts healing directly through bone union or indirectly through callus formation process. Intramembranous and endochondral ossification are two commonly known mechanisms of indirect healing. The present study investigated the bone fracture healing under intramembranous and endochondral ossification by developing theoretical models in conjunction with performing a series of animal experiments. Using experimentally determined mean bone densities in sheep tibia stabilized by the Locking Compression Plate (LCP) fixation system, the research outcomes showed that intramembranous and endochondral ossification can be described by Hill Function with two unique sets of function parameters in mechanical stimuli mediated fracture healing. Two different thresholds exist within the range of mechanical simulation index which could trigger significant intramembranous and endochondral ossification, with a relatively higher bone formation rate of endochondral ossification than that of intramembranous ossification. Furthermore, the increase of flexibility of the LCP system and the use of titanium LCP could potentially promote uniform bone formation across the fracture gap, ultimately better healing outcomes.
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