Volume 17 (2023)
Volume 16 (2022)
Volume 15 (2021)
Volume 14 (2020)
Volume 13 (2019)
Volume 12 (2018)
Volume 11 (2017)
Volume 10 (2016)
Volume 9 (2015)
Volume 8 (2014)
Volume 7 (2013)
Volume 6 (2012)
Volume 5 (2011)
Volume 4 (2010)
Volume 3 (2009)
Volume 2 (2008)
Volume 1 (2007)
Volume -2 (2005)
Volume -1 (2004)
Spinal Biomechanics
Evaluation of Primary Stability of Spinal Pedicle Screws using Modal Analysis, Conventional Pull-Out and Insertion Torque Test

Mohammad Javad Einafshar; Seyed Ataollah Hashemi; Pedram Mojgani

Volume 14, Issue 3 , October 2020, , Pages 169-177

  Back pain is a common medical problem. There is no clear cause for the back pain problem so far, but in most cases, spinal instability can be noted. Lumbar spine fixation is performed to treat the problems of low back pain. Spinal fixation can be done with or without surgery. One of the surgical methods ...  Read More

Spinal Biomechanics
Estimation of Lumbar Spine Load Sharing using a Detailed Finite Element Model driven by X-Ray Kinematics in Flexion Task

Iraj Dehghan Hamani; Navid Arjmand

Volume 11, Issue 4 , February 2018, , Pages 327-335

  Spinal diseases are prevalent and costly. Excessive mechanical loads on the spine play a crucial role in the etiology of back disorders. To estimate spinal loads one needs to calculate unknown muscle forces through either an optimization or EMG-driven approach. Both approaches involve several assumptions ...  Read More

Spinal Biomechanics
Estimation of Low Back Muscles and Joints Forces in Various Physical Tasks using a Combined Optimization-EMG based Spinal Model

Yousef Mohammadi; Rasoul Abedi; Navid Arjmand; Gholamreza Ataei; Nasser Fatouraee

Volume 11, Issue 4 , February 2018, , Pages 351-363

  The growth of low back pain and disoreders are increasing in different societies. Furthermore,the direct in vivo measurement of spinal and muscle forces is so difficult. Hence, the use of musculoskeletal biomechanical models has been emerged applicably as a tool for calculating and estimating spinal ...  Read More

Spinal Biomechanics
A Novel Approach for Automatic Calculation of Required Parameters in Spine Surgery using CT Images Row Data

Mojtaba Shahab; Behzad Seyfi; Nasser Fatouraee; Amir Saeid Seddighi

Volume 9, Issue 1 , April 2015, , Pages 1-15

  Spinal deformities are generally associated with lumbar and cervical chronic pain and additionally they disturb the health. In these deformities, lumbar spinal curvature undergone changes in three dimensional space and in most cases, they cause reduction of lung capacities, breathing problems and negative ...  Read More

Spinal Biomechanics
Effect of Artificial Degeneration Induced by Needle Puncture on Time-Dependent Response of Intervertebral Disc.

Mohammad Nikkhoo; Sajjad Najafzadeh; Romina Kargar

Volume 9, Issue 4 , February 2015, , Pages 317-326

  Understanding the mechanism of artificial disc degeneration using animal models is useful to study the regenerative techniques in hope of finding potential therapeutic strategies. For any type of potential therapeutic techniques, first we need to have the degenerated model. Disc degeneration ...  Read More

Biomechanics of Bone / Bone Biomechanics
Design and Biomechanical Study of the First Iranian Cervical Cage using Finite Element Analyses

Mohammad Nikkhoo; Ali Tahassori; Mohammad Haghpanahi

Volume 8, Issue 3 , September 2014, , Pages 203-212

  To develop the advanced technologies in medical device industry, design and manufacturing of cervical cage was performed in Iran for the first time. This research-based industrial project should be accomplished based on precise biomechanical studies and mechanical tests. Hence, this study presents the ...  Read More

Gait Analysis
Nonlinear analysis of dynamic lumbar stability during repetitive trunk flexion extension at symmetric and asymmetric directions

Samane Moeini Sedeh; Navid Arjmand; Mohammad Ali Sanjari; Hamid Reza Mokhtarinia; Morteza Asgari; Mohammad Parnianpour

Volume 7, Issue 4 , June 2013, , Pages 333-340

  Stability is important to prevent falling during occupational and daily living activities. Control parameters such as direction of motion and external load can affect stability pattern. The purpose of this paper was to evaluate the effect of the mentioned control parameters on stability. Time series ...  Read More

Biomedical Image Processing / Medical Image Processing
Intra-operative 3D navigation and TRE reduction in image guided spine surgery

Marzie Ershad; Alireza Ahmadian; Houshang Saberi

Volume 7, Issue 2 , June 2013, , Pages 155-162

  Registration of preoperative images to intra-operative patient space is a crucial step in image guided surgery for tracking surgical tools relative to patient’s anatomy. In image guided spine surgery, due to the difference in patient’s positioning in preoperative imaging, compared with intra-operative ...  Read More

Biomechanics of Bone / Bone Biomechanics
Axisymmetric Poroelastic FE Modeling of Intervertebral Disc for Investigation of Lumbar Spine Biomechanics

Mohammad Nikkhoo; Mohammad Haghpanahi; J. L. Wang; Mohammad Parnianpour

Volume 5, Issue 1 , June 2011, , Pages 21-32

  Prediction of the relationship between different types of mechanical loading and the failure of the intervertebral disc is so important to identify the risk factors which are difficult to study in vivo and   in vitro. On the basis of finite element methods some of these issues may be overcome ...  Read More

Spinal Biomechanics
Experimental Measurement and Numerical Modeling of Spine Alignment of the Lateral Sleep Position and Determining the Optimal Stiffness of Mattress Elements for Male Subjects

Karim Leilnahari; Nasser Fatouraee; Mohammad Saleh Ganjavian

Volume 5, Issue 2 , June 2011, , Pages 161-170

  Ergonomic factors have a direct influence on the quality of spine support during sleep. Previous studies have shown that a mattress with a homogeneous stiffness can not necessarily maintain the natural spinal alignment. Using mattresses with components of different stiffness could be considered as a ...  Read More

Gait Analysis
Analytical And Experimental Investigation Of Human Balance Recovery In Response To Oscillations Of The Base Of Support In The Frontal Plane

Mohsen Sadeghi Mehr; Davoud Naderi; Nader Farahpour; Saeed Davoud Abadi Farahani

Volume 3, Issue 3 , June 2009, , Pages 179-187

  The present study was devoted to determine the standing human body reactions to perturbation of a base plate in the frontal plane, in order to preserve its stability. A base plate with sinusoidal fluctuation was designed and built and then markers were mounted on the specified locations on it and the ...  Read More

Spinal Biomechanics
The Effects of Cyclic Hydrostatic Pressure on Intervertebral Disc Cells

Mehran Kasra

Volume 3, Issue 4 , June 2009, , Pages 285-290

  The influence of compression on intervertebral disc cells has been examined in a number of previous studies. However, in most of these studies hydrostatic pressure was used at low levels, and few studies reported the effects of high pressures within a large range of frequencies on intervertebral disc ...  Read More

Biomechanics of Bone / Bone Biomechanics
An Analytical Model For Investigation Of Human Head Impact And Study Of Its Governing Equations

Shahab Mansourbaghaei; Majid Haghayegh; Seyed Mohammad Rajaei

Volume 3, Issue 3 , June 2009, , Pages 243-253

  An analytical method to predict the response of the inclined impact of a fluid filled elastic spherical shell having an arbitrary thickness with an elastic toroid is investigated in this paper which can be a model for analytical evaluation of blunt impact on the human head. The study is performed under ...  Read More

Neuro-Muscular Engineering
Experimental and Theoretical Investigation of Human Stability under Tilting Base Plate in the Sagittal Plane

Davoud Naderi; Mohsen Sadeghi Mehr; Nader Farahpour; Behnam Miripour-Fard

Volume 2, Issue 2 , June 2008, , Pages 85-93

  Cognition of human postural responses can provide valuable insight on the control of stability. Researchers can use this finding to design rehabilitation exercises to improve the patients, balance. This study was done with the aim of conducting theoretical and experimental investigations on human response ...  Read More

Tissue Engineering
Triphasic Finite Element Modeling of Intervertebral Discs for Biomechanical Studies in Tissue Engineering

Mohammad Haghpanahi; Mohammad Nikkhoo; Habibollah Peirovi

Volume 2, Issue 1 , June 2008, , Pages 47-56

  According to mechanobilogical studies as an infrastructure for tissue engineering researches, this paper presents a triphasic finite element modeling of intervertebral discs such a hydrated porous soft tissue. First, the governmental equations were derived on the basis of the laws of continuum mechanics. ...  Read More

Biomechanics of Bone / Bone Biomechanics
Material Property Sensitivity Analysis For Exact Finite Element Model Of The First Cervical Vertebra (Atlas)

Mohammad Haghpanahi; Mehdi Pourdanial

Volume 1, Issue 4 , June 2007, , Pages 289-299

  A 3D anatomically accurate finite element model of the human first cervical vertebra (atlas), including cortical and cancellous bones, was developed in ANSYS 9 based on CT-scan images. The main objective was to investigate the effect of cancellous bone on the value and distribution of maximum and average ...  Read More

Biomechanics of Bone / Bone Biomechanics
A 3d Finite Element Analysis Of The Second Cervical Vertebra (Axis) To Study The Odontoid Fracture

Mohammad Haghpanahi; Ali Gorginzadeh; Saba Sohrabi

Volume 1, Issue 2 , June 2007, , Pages 131-136

  Considering the life threatening consequences of the cervical spine injuries, the study of its biomechanical behavior has become important. The most common axis (second cervical vertebra) injury is called odontoid fracture, the majority of which is type II or dens fracture. In this study, an exact 3D ...  Read More

Biomechanics of Bone / Bone Biomechanics
Parameters Affecting The Stresses Within Pedicel Screw Systems In A Stabilized Lumbar Spine

Seyed Hamed Hosseini Nasab; Farzam Farahmand; Mohammad Hossein Karegar Novin; Mohsen Karami

Volume -1, Issue 2 , June 2005, , Pages 159-172

  Several linear and nonlinear finite element models of intact and fixed lumbar spine were analyzed. The intact model was developed based on CT images, and following verification, was employed to simulate the spinal fixation procedure using two different commercial pedicle screw systems. The results including ...  Read More