<p><i>Study Design</i>: A randomized controlled multicenter trial with 8-year follow-up.</p> <p><i>Objective</i>: The aim of this study was to assess the long-term development of adjacent disc degeneration (ADD) after lumbar total disc replacement (TDR) or nonoperative treatment, and to analyze the association between ADD development and clinical outcome.</p> <p><i>Summary of Background ...

Purpose - The aim was to describe magnetic resonance imaging findings in patients planned for lumbar spinal stenosis surgery. Further, to describe possible associations between MRI findings and patient characteristics with patient reported disability or pain.<p> <p>Methods - The NORDSTEN spinal stenosis trial included 437 patients planned for surgical decompression of LSS. The following MRI ...

<p><i>Background - </i>Spinal stenosis is a clinical diagnosis in which the main symptom is pain radiating to the lower extremities, or neurogenic claudication. Radiological spinal stenosis is commonly observed in the population and it is debated whether patients with no lower extremity pain should be labelled as having spinal stenosis. However, these patients is found in the Norwegian Registry for ...

<i>Purpose</i> - To investigate changes in dural sac area after three different posterior decompression techniques in patients undergoing surgery for lumbar spinal stenosis.<p><p> <i>Summary of background data</i> - Decompression of the nerve roots is the main surgical treatment for lumbar spinal stenosis. The aim of this study was to radiologically investigate three commonly used posterior ...

Importance Operations for lumbar spinal stenosis is the most often performed surgical procedure in the adult lumbar spine. This study reports the clinical outcome of the 3 most commonly used minimally invasive posterior decompression techniques.<p> <p>Objective To compare the effectiveness of 3 minimally invasive posterior decompression techniques for lumbar spinal stenosis. <p>Design, ...

<p><i>Background - </i>Fusion in addition to decompression has become the standard treatment for lumbar spinal stenosis with degenerative spondylolisthesis (DS). The evidence for performing fusion among these patients is conflicting and there is a need for further investigation through studies of high quality. The present protocol describes an ongoing study with the primary aim of comparing the ...

<p><i>Objective - </i>To assess the efficacy of three months of antibiotic treatment compared with placebo in patients with chronic low back pain, previous disc herniation, and vertebral endplate changes (Modic changes). <p><i>Design - </i>Double blind, parallel group, placebo controlled, multicentre trial. <p><i>Setting - </i>Hospital outpatient clinics at six hospitals in Norway. <p><i>Participants ...

<i>Objective</i> - To assess the reliability of lumbar facet arthropathy evaluation with computed tomography (CT) or magnetic resonance imaging (MRI) in patients with and without lumbar disc prosthesis and to estimate the reliability for individual CT and MRI findings indicating facet arthropathy.<p> <p><i>Methods</i> - Metal-artifact reducing CT and MRI protocols were performed at follow-up of ...

Background: Evidence is lacking on whether fat infiltration in the multifidus muscles affects outcomes after total disc replacement (TDR) surgery and if it develops after surgery. The aims of this study were 1) to investigate whether pre-treatment multifidus muscle fat infiltration predicts outcome 2 years after treatment with TDR surgery or multidisciplinary rehabilitation, and 2) to compare changes ...

Background We aim to investigate associations between preoperative radiological findings of lumbar foraminal stenosis with clinical outcomes after posterior microsurgical decompression in patients with predominantly central lumbar spinal stenosis (LSS).<p> <p>Methods The study was an additional analysis in the NORDSTEN Spinal Stenosis Trial. In total, 230 men and 207 women (mean age 66.8 (SD ...