Abstract

This study addresses the implantation of a vertebral implant into the cervical spine using X-ray imaging and 3D modeling. The aim of the research was to evaluate the stress–strain state of the "implant–bone tissue" system under physiological loads. It has been demonstrated that the minimum stress values for loads of 70 … 200 N remain insignificant. It should be noted that with increasing load, the VT-6 titanium alloy experiences higher stress levels; however, these do not reach critical values. Displacements along the X, Y, and Z axes remain acceptable for all load levels, which indicates the stability of the model and the absence of pathological mobility. The minimum safety factor values under an applied load of 70 … 200 N ranges from 9.25 to 3.23 units, which confirm the reliability of the structure even under maximum exposure. Thus, the implant demonstrates a sufficient strength margin and resistance to physiological loads of the cervical spine. The obtained results confirm that the selected geometric parameters and implant material ensure the required level of biomechanical compatibility. Overall, the developed model can be employed for further integration of the cervical spine vertebrae of segments C1 and C2, as well as for preoperative planning and optimization of fixation parameters.