Functional reliability of means of fixation for complex pelvic fractures. Part 2. Experimental studies under static loads




biomechanics, osteosynthesis, displacement of bone fragments, fracture fixation, fracture fixation stiffness, fracture fixation stability, pelvic fracture, spongy screws, pedicle plate, rod apparatus of external fixation


Fracture fixation devices should ensure reliable fixation of bone fragments, preventing their mutual displacement during transportation and treatment of patients. Today, in traumatology and orthopedics, two methods of fixation are used to fix complex fractures of the pelvic bones caused by high-velocity wounding projectiles: parallel insertion of spongy screws (osteosynthesis of the posterior pelvic ring) and stabilization with a rod apparatus of external fixation and fixation by means of reinforced with application of extramedullary reconstructive plate (osteosynthesis of the anterior pelvic ring). The anterior pelvis is stabilized more often because this technique is simpler, does not require much time and high qualification of the surgeon. However, this method of fixation does not provide sufficient stability of the connection of the pelvic ring bone fragments. For further improvement of the configuration of fixation systems, it is necessary to conduct comparative experimental studies of the stiffness and stability of fixation on natural specimens under real types and levels of loads with modeled damage to the anterior and posterior parts of the pelvic ring. This work is devoted to the study of the characteristics of stiffness and reliability of fixation of complex pelvic fractures with pelvic ring damage under static loads. A methodology for determining the deformation characteristics was developed and full-scale studies of fixation devices for complex pelvic fractures were performed. The processes of occurrence and development of mutual displacements of fracture points under tension and bending were studied.


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How to Cite

M. Dyman, M. Shydlovskyi, A. Laksha, and O. Fomin, “Functional reliability of means of fixation for complex pelvic fractures. Part 2. Experimental studies under static loads”, Mech. Adv. Technol., vol. 8, no. 2(101), Jun. 2024.