摘要
The study aimed to develop efficient techniques with different novel graft structures to enhance the treatment of acetabular bone deficiency.The inhomogeneous material properties Finite Element Analysis(FEA)model was reconstructed according to computed tomography images based on a healthy patient without any peri-acetabular bony defect according to the American Academy of Orthopedic Surgeons(AAOS).The FEA model of acetabular bone deficiency was performed to simulate and evaluate the mechanical performances of the grafts in different geometric structures,with the use of fixation implants(screws),along with the stress distribution and the relative micromotion of graft models.The stress distribution mainly concentrated on the region of contact of the screws and superolateral bone.Among the different structures,the mortise-tenone structure provided better relative micromotion,with suitable biomechanical property even without the use of screws.The novel grafting structures could provide sufficient biomechanical stability and bone remodeling,and the mortise-tenone structure is the optimal treatment option for acetabulum reconstruction.
基金
supported and funded by the following grants:National Natural Science Foundation of China[Grant Numbers 82072456 and 81802174]
National Key R&D Program of China[Grant Number.2018YFB1105100]
Bethune plan of Jilin University[Grant Number 419161900014]
Wu Jieping Medical Foundation[3R119C073429]
Department of Science and Technology of Jilin Province,P.R.C.[Grant Numbers 20200404202YY and 20200201453JC]
Department of Finance in Jilin province[Grant Numbers 2019SCZT046,2020SCZT037]
undergraduate teaching reform research project of Jilin University[Grant Number 4Z2000610852]
key training plan for outstanding young teachers of Jilin University[Grant Number 419080520253]
Jilin Province Development and Reform Commission,P.R.C.[Grant Number 2018C010]
Natural Science Foundation of Jilin Province[Grant Number 20200201345JC].
