STUDY DESIGN An in vitro biomechanical investigation in the human lumbar spine focuses on the functional significance of vertebral bone density and intervertebral disc degenerations. OBJECTIVE To determine that interrelationship between vertebral bone density and intervertebral disc degeneration, their effect on normal spine motion, and their significance in the biotechnical performance of in...

Low back pain secondary to degenerative intervertebral disc disease contributes to significant pain and disability in the United States. The potential to reverse intervertebral disc degeneration has driven significant interest in the development of stem cell therapy for degenerative disc disease. Early animal models have demonstrated that stem cell therapy may facilitate the reversal of the dis...

OBJECTIVE To evaluate the correlation between the severity of intervertebral disc injury and the anteroposterior type of thoracolumbar vertebral fractures. METHODS Fifty-six cases of thoracolumbar vertebral fractures treated in our trauma center from October 2012 to October 2013 were included in this study. The fractures were classified by the anteroposterior classification, whereas the sever...

Axial MR images of 65 lumbar disks with herniated nucleus pulposus imaged by gradient-refocused-echo (GRE) and spin-echo (SE) MR pulse sequences of 200-400/15 with a flip angle of 15-30 degrees was selected as optimal because of its high signal-to-noise ratio and good contrast between CSF, nucleus pulposus, and bone. The GRE technique was confirmed to be more sensitive in detecting prolapsed di...

The incidence of work-related musculoskeletal disorder including low back pain sharply increased since 2000 in Korea. The objectives of the present study are to compare disability duration of lumbar intervertebral disc displacement among types of insurances, and to obtain its appropriate duration. The medical records of all patients whose final diagnosis in discharge summary of chart was lumber...

Thoracolumbar intervertebral disc disease is the most common cause of caudal paresis in dogs. Whilst the pathogenesis of the extrusion has been widely studied, treatment protocols and prognostic factors relating to outcome remain controversial. Recent studies have examined a multitude of factors relating to time to regain ambulation after decompressive surgery. Most intervertebral disc herniati...

STUDY DESIGN Asymptomatic volunteers underwent magnetic resonance imaging to investigate how different positions affect lumbar intervertebral discs. OBJECTIVE To quantify sagittal migration of the lumbar nucleus pulposus in 6 functional positions. SUMMARY OF BACKGROUND DATA Previous studies of the intervertebral disc response in the sagittal plane were limited to imaging of recumbent positi...

Although human intervertebral disc degeneration can lead to several spinal diseases, its pathogenesis remains unclear. This study aimed to create a new histological classification applicable to an in vivo mouse intervertebral disc degeneration model induced by needle puncture. One hundred six mice were operated and the L4/5 intervertebral disc was punctured with a 35- or 33-gauge needle. Micro-...

Intervertebral disc degenerative diseases have become a serious social health problem. However, there is no clinical treatment effectively retarding the progression of intervertebral disc degeneration. Crocin, which is extracted from saffron, has been proved to exert anti-inflammatory and anti-catabolic effects on intervertebral disc in vitro and ex vivo. In the present study, effects of crocin...

Background To determine the relationship between superior disc-endplate complex injury and correction loss after surgery in a group of young adult patients with a stable thoracolumbar burst fracture. Methods The study group was comprised of young adult patients who had undergone short-segment posterior fixation and bone grafting under the diagnosis of a stable thoracolumbar burst fracture fro...