Intralesional curettage versus Prosthetic replacement for bone tumors —— A finite element analysis case of limb salvage simulation in biomechanics

Abstract Background and objectives To compare mechanical properties of femoral tumor treatments so that better operative strategy for limb tumors surgery is optimized. Methods Fourteen femoral CT images were randomly selected to rebuild 3D models by MIMICS. They were then executed by reverse engineering softwares for simulative modes. Mode #1: Intralesional curettage with cement filled plus fixator; Mode #2: Distal femur resection with tumorous prosthesis replaced. Finally, the mechanical aspects such as stress and displacement were compared by finite element analysis. Results Analyzed by AnSys, the observation indexes were measured as follows: for displacement of femurs, d=1.4762 ( Conclusions Our finite element analysis of limb salvage simulation in biomechanics proved that, to treat distal femoral bone tumors, prosthetic replacement is more efficient than intralesional curettage.