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采用有限元方法模拟研究了高氮无镍不锈钢接骨板厚度减薄对其力学行为的影响规律。结果表明,接骨板厚度减薄18%以内,其抗弯能力、抗拉能力和抗压能力均优于传统尺寸的316L不锈钢接骨板。通过12周动物骨折模型研究了轻量化高氮无镍不锈钢骨板对骨折愈合后的生物力学的影响。结果表明,厚度减薄约14%的高氮无镍不锈钢接骨板固定兔子骨折股骨更有利于骨折的愈合和恢复。
Finite element method was used to simulate the influence of the thinning of the plate thickness on the mechanical behavior of the high-nitrogen, nickel-free stainless steel plate. The results show that the bending strength, tensile strength and compressive strength of the plate are better than those of the traditional 316L stainless steel plate when the thickness of the plate is reduced by 18%. The biomechanical effect of a lightweight, high-nitrogen, nickel-free stainless steel plate on fracture healing was investigated by a 12-week animal fracture model. The results showed that the fixation of rabbit fractured femur with high nitrogen and nickel-free stainless steel plate with thickness reduction of about 14% is more conducive to fracture healing and recovery.