ريحانه هاشمي نيستانكي

Abstract This study investigates and compares external and internal spinal fixation systems for the treatment of fractures or deep fissures in the L4 lumbar vertebra using finite element analysis (FEA). Based on the provided descriptions, the main objectives of the study included: Designing Stabilization System Models:Two different models of external fixation systems and one internal fixation system for the L3-L4-L5 region were designed. These models were eva‎luated under conditions where the L4 vertebra has a fracture or deep fissure. Biomechanical Measurement and Analysis: The study assessed the range of motion of the spine, the maximum stress on the L4 vertebra, and the two stabilization models along with the intervertebral discs of L3-L4 and L4-L5. eva‎luation of a New Technique: The study eva‎luated a new combined technique that includes external stabilization through the skin and bone grafting using Schanz screws. The findings indicated that this technique is a practical, safe, beneficial, efficient, and minimally invasive method for treating vertebral fractures. Conclusion: The mentioned technique is proposed as a reasonable alternative to other minimally invasive surgical management techniques for spinal fractures. Overall, the study reached conclusions that could help improve treatment methods and reduce complications arising from vertebral fractures.

تجزيه و تحليل اجزاي محدود (FEA) , تثبيت‌كننده خارجي , شكستگي مهره كمري , بيومكانيك ستون‌فقرات , جراحي ستون‌فقرات كمري

Finite Element Analysis (FEA) , External Fixation , Lumbar Vertebra Fracture , Spinal Biomechanics , Lumbar Spine Surgery

reyhane sadat hashemi neistanaki

mohammad haghpanahi