The present study proposes a semiautomatic software approach to reconstruct 3D subject-specific musculoskeletal model of thoracolumbar spine from radiographic digitized images acquired with EOS system. The approach is applied to evaluate the intervertebral loads in 38 standing adolescents with mild idiopathic scoliosis. For each vertebra, a set of landmarks was manually identified on radiograph...

nowadays there are a few postgraduate orthopedic surgeons who wish to enter a spinal fellowship program. the purpose of this study is to determine the current trainees’ perceptions of competency in the spine fellowship education in mashhad university of medical sciences and evaluating their suggestion to overcome the problem. in this cross sectional study, a self-made questionnaire was develope...

Background: Spinal cord injury (SCI) is one of the main causes of severe disability and mortality following trauma. Complications and outcomes of patients with spine trauma, especially those who undergo surgery, are a less divulged topic in Iran. Therefore, we designed the present study to evaluate complications and outcomes of patients with traumatic spine in Poursina hospital of Rasht. Mater...

Introduction: Paediatric patients deserve special attention because of the higher radiation risks compared with adults. The main purpose of this study is to determine patient dose and diagnostic reference level for Paediatric through Entrance Surface Dose (ESD) calculations in common X-ray examination and to establish Paediatric national DRLs in digital radiography in Iran. <...

The goal of this study was to generate a realistic 3D FE model of the seven level thoracolumbar spine. This research focused on the development of a robust and efficient procedure for generating anatomical 3D FE models, directly from a series of medical images, i.e., CT data. A complex model of the spine was created by combining two different modelling approaches, namely the CAD and STL-CAD met...

A complete and detailed three-dimensional finite element model of the human cervical spine (C1-C7), including soft and hard tissues, was created using a digitized geometric measurement tool. The model was validated against existing experimental studies in flexion, extension, lateral bending, and axial rotation. The aims of this study were to use the model to simulate the mechanisms of injury sc...

Low back pain, which most common cause is degenerative disc disease, currently represents a serious problem due to its socio-economic repercussions. Different factors are involved in the degenerative process, being the most common: the loads on the spine, repeated flexion movements and individual genetic characteristics. Nowadays, there is no agreement on whether instability is the main cause o...

A flow-spine of a 3-manifold is spine admitting flow that transverse to the spine, where in complement diffeomorphic constant an open ball. We say contact structure on closed, connected, oriented supported by if it has form whose Reeb flow-spine. It known Thurston and Winkelnkemper any book decomposition closed supports structure. In this paper, we introduce notion positivity for flow-spines pr...

BACKGROUND CONTEXT High-energy impacts are commonly encountered during sports such as rugby union. Although catastrophic injuries resulting from such impacts are rare, the consequences can be devastating for all those involved. A greater level of understanding of cervical spine injury mechanisms is required, with the ultimate aim of minimizing such injuries. PURPOSE The present study aimed to...

In this paper, a fully discretized bio-fidelity simulation model for biomechanical (kinematic) analysis of scoliosis for various patients was developed to analyze forces on vertebrae, loads acting on the intervertebral disc, corresponding angles between vertebrae, and tension in the spine muscles during lateral bending. It was further developed to study the movement limitation and muscle activa...