BACKGROUND Back problems are reported more by occupational drivers than by any other occupational group. One explanation is that whole-body vibration caused by the vehicle leads to accelerated disc degeneration, herniation, and associated symptoms. We aimed to investigate the effects of lifetime driving exposure on lumbar disc degeneration in monozygotic twins with very different histories of o...

The objective of this study was to evaluate and compare the cost and effects on quality of life [using quality-adjusted life years (QALYs)] of 2 treatments for sciatica secondary to lumbar disc herniation: chemonucleolysis and surgical discectomy. The design involved a combination of decision analysis and Rosser index, with assessment of probabilities from long term clinical series. Utility was...

Both target radiofrequency thermocoagulation and collagenase chemonucleolysis are effective micro-invasive therapy means for lumbar intervertebral disc herniation. In order to analyze the clinical effects of target radiofrequency thermocoagulation combined with collagenase chemonucleolysis on lumbar intervertebral disc herniation, the contents of hydroxyproline and glycosaminoglycan were measur...

A framework was developed to estimate the welfare incidence of the 1996 U.S .-Canada Softwood Lumb~r Agreem~nt among producers in two-processing-stage markets-timberland owners, loggers, and lumber manulacturers-m the U.S. South. Timberland owners are the largest beneficiary whereas lumber manufacturers ?re the second and loggers the least. Empirically, without considering substitution effects ...

OBJECTIVE To assess the longitudinal validity of widely used preference-weighted measurement systems for economic studies of intervertebral disk herniation (IDH). METHODS Using data at baseline and 1 year from 1000 Spine Patient Outcomes Research Trial (SPORT) participants with IDH and complete data, the authors considered the EQ-5D with UK and US values (EQ-5D-UK and EQ-5D-US), 2 versions of...

The long-term course to lumbar intervertebral disc herniation (LDH) patients receiving integrative Korean medicine treatment and predictive factors associated with disc resorption were investigated. LDH patients who received integrative Korean medicine treatment from February 2012 to December 2015 and were registered in the "longitudinal project for LDH on MRI" were included. Disc resorption am...

Lumbar disc herniation (LDH) is a public complaint among adults with degenerated lumbar intervertebral discs. However, its incidence in childhood and adolescence is abundant. This dissimilarity designates that children are distant from being just little adults. Findings recommended that pediatric LDH is, in numerous ways, dissimilar from that in adults. The occurrence, the etiological and the d...

Lumber disc herniation is one of the most common causes of low back pain. Relevant research indicates that it is generally induced by the degenerated deformation of a disc due to too much labor or spine abnormality. The number and variety of clinical interventions for lumbar disc herniation continue to grow. The lumbar intervertebral disc is a viscoelastic tissue located in the middle of the tw...

Four methods of converting low-grade yellow-poplar lumber into highgrade furniture core material (lumber core) were compared. High-grade core material is used in tops, shelves, doors, and drawer fronts and only minor defects are allowed. Three gang-rip first and the conventional crosscut-first manufacturing sequences were evaluated in combination with 1 Common, 2A Common, and 2B Common lumber. ...