Introduction: Low back pain is the most prevalent orthopedic disorder and the first main cause of poor working functionality in developed as wells as many developing countries. In Absence of noninvasive in vivo measurement approaches, biomechanical models are used to estimate mechanical loads on human joints during physical activities. To estimate joint loads via musculoskelet...

Researchers have reported on the importance of the rib cage in maintaining mechanical stability in the thoracic spine and on the validity of a compressive follower preload. However, dynamic mechanical testing using both the rib cage and follower load has never been studied. An in vitro biomechanical study of human cadaveric thoracic specimens with rib cage intact in lateral bending, flexion/ext...

background & aim: low back pain is the most debilitating condition, and can lead to decreased physical function, compromised quality of life, and psychological distress. several studies has conducted to recognize the risk factors of lbp, but despite of strong relationship between obesity and lbp, the underlying mechanisms are unclear. the aim of this study was to evaluate the relationship betwe...

This study investigated that the spinal MFs can create compressive follower loads (CFLs) in the lumbar spine in a dynamic state. Three-dimensional optimization and finite element (FE) models of the spinal system were developed and validated using reported experimental data. An optimization analysis was performed to determine the MFs that create CFLs in the lumbar spine in various sagittal postu...

Neck and low back pain causes highest disability rates in industrialized countries. Apart from bluecollar occupations dentists and dental care personnel are also strongly affected by work related back pain. However, due to missing analysing systems spine exposure could not be adequately estimated for sitting and non load bearing tasks. Therefore, a new biomechanical measurement system was devel...

this cross-sectional study is conducted to determine the prevalence of asymptomatic cervical spine subluxation in rheumatoid arthritis patients by plain radiographs and its relation to demographic and clinical characteristics, disease activity measures and medications. 100 rheumatoid arthritis patients (18 male and 82 female) were selected randomly, according to the american college of rheumato...

In the book ”Contemporary Endoscopic Spine Surgery”, edited by Kai-Uwe Lewandrowski, Jorge Felipe Ramírez León, and Anthony Yeung, information on history of spinal endoscopy is provided. A number aspects surgery are covered, in particular pain, preoperative examination, indications for endoscopic surgery, anesthesia, outpatient surgery. New technologies described. Leading scientists presented c...

background: dose assessment using proper dosimeters is especially important in radiation protection optimization and imaging justification in diagnostic radiology. objective: the aim of this study is to obtain the entrance skin dose (esd) of patients undergoing lumbar spine imaging using two thermoluminescence dosimeters tld-100 (lif: mg, ti) and gr-200 (lif: mg, cu, p) and also to obtain the a...

INTRODUCTION: A number of surveys have shown that the golf swing is increasingly being recognized as a potential cause of lower back injuries. Although many researchers have been interested in seeking a “perfect” golf swing to improve performance, surprisingly, few studies have investigated the potential causes of injury such as back pain. The forces generated by the musculature surrounding the...