Publications by authors named "E Nevzati"

Article Synopsis
  • Osteolytic lesions in the spine can lead to instability, and different surgical methods aim to restore stability, but their biomechanical impacts are not well understood.
  • The study assessed the biomechanical effects of three surgical techniques for treating a T12 osteolytic lesion using finite element analysis, simulating real human spinal conditions.
  • Results showed that Model A had the least stress on the material but higher stress on instrumented vertebrae, while Model B was rigid with lower construct stress, and Model C had the lowest vertebral body stress but the highest screw pull-out stress, offering important insights for surgical decision-making.
View Article and Find Full Text PDF

Objective: The authors present a finite element analysis (FEA) evaluating the mechanical impact of C1-2 hypermobility on the spinal cord.

Methods: The Code_Aster program was used to perform an FEA to determine the mechanical impact of C1-2 hypermobility on the spinal cord. Normative values of Young's modulus were applied to the various components of the model, including bone, ligaments, and gray and white matter.

View Article and Find Full Text PDF
Article Synopsis
  • The study was a retrospective longitudinal analysis investigating the link between lumbar intervertebral disk degeneration (DD) and vertebral bone quality (VBQ) scores, focusing on patients who experienced low back pain and underwent MRI scans over a three-year period.
  • Results showed a significant increase in VBQ scores from baseline to follow-up, with a positive correlation between various levels of disk degeneration and bone quality observed over time.
  • The conclusion suggests that advanced and persistent DD is linked to lower VBQ scores, indicating that higher bone marrow fat content may lead to potentially stronger bone, highlighting the influence of DD on bone quality assessments.
View Article and Find Full Text PDF

Background: Biodegradable materials that dissolve after aneurysm healing are promising techniques in the field of neurointerventional surgery. We investigated the effects of various bioabsorable materials in combination with degradable magnesium alloy stents and evaluated aneurysm healing in a rat aneurysm model.

Methods: Saccular aneurysms were created by end-to-side anastomosis in the abdominal aorta of Wistar rats.

View Article and Find Full Text PDF

Background: Tumors of the vertebral column consist of primary spinal tumors and malignancies metastasizing to the spine. Although primary spine tumors are rare, metastases to the spine have gradually increased over past decades because of aging populations and improved survival for various cancer subtypes achieved by advances in cancer therapy. Metastases to the vertebral column occur in up to 70% of cancer patients, with 10% of patients demonstrating epidural spinal cord compression.

View Article and Find Full Text PDF