Quantitative relationships between elastic modulus of rod and biomechanical properties of transforaminal lumbar interbody fusion: a finite element analysis - Li, Jie; Du, Zengfeng; Cao, Shuai; Lu, Teng; Sun, Zhongwei; Wei, Hongyu; Li, Haopeng; Zhang, Ting (Frontiers in Bioengineering and Biotechnology, 2025)