Active clinical trials for "Intervertebral Disc Displacement"

Low back pain is a major cause of disability, especially in the working-age population. A total of 149 million working days are lost every year as a consequence of back pain. Intervertebral disc (IVD) degeneration is thought to play a major role in chronic back and neck pain. Decades of bench-top research in tissue mechanics have shown clear relationships between changes in mechanical properties and abnormal changes IVD structure and composition. Our overall hypothesis is that measurements of IVD mechanical properties can provide valuable information about its structure and composition for early diagnosis of degeneration, quantification of degeneration progress, and evaluation of treatment strategies. Magnetic Resonance Elastography (MRE) is an imaging method to quantify mechanical properties from soft tissues. The objectives of this study are to evaluating repeatability and collecting base line data from healthy individuals; and to apply MRE to patients with disc herniation.

This study is undertaken to evaluate the outcomes of Oblique Lateral Lumbar Interbody Fusion (OLLIF). Specifically, the study seeks to measure outcomes on radiological imaging, outcomes reported by the patients on standardized questionnaires, and complication rates.

In this prospective study the investigators seek to evaluate clinical outcomes after repairing the defect of intervertebral disc with autologous BMSC/gelatin sponge during microendoscopic discectomy for participants of lumbar disc herniation.

The purpose of this study is to compare the clinical outcome of medical treatment associated with lumbar traction and medical treatment alone in the treatment of lumbar disk herniation.

Post-operative restrictions following lumbar discectomy is a controversial topic. While the most widely accepted protocol restricts bending, lifting, and twisting for four to six weeks following discectomy, a number of studies support an early return to full activity without restriction. Since the goal of discectomy is to promptly provide pain relief and a return to a fully active lifestyle, perhaps post-operative restrictions are more hindering than beneficial. Hypothesis: Post-operative restrictions following lumbar discectomy do not influence reherniation rate. Specific Aim 1: To compare the reherniation rates between the 6-weeks of restriction and the 2-weeks of restriction groups. Specific Aim 2: To determine the return to full activity and return to work dates of both the 6-weeks of restriction and 2-weeks of restriction groups. Specific Aim 3: To assess the health outcomes of both the 6-weeks of restriction and 2-weeks of restriction groups.

This study evaluates the influence of Non-steroidal Anti-inflammatory Drugs on preventing fever after the removal of drainage tube in the patients who suffered lumbar fusion surgery, if the outcome turn out positive, the preventive use of non-steroidal anti-inflammatory drugs could decrease the possibility of fever happening when we remove the tube.

This study will investigate whether two clinical tests can be used to diagnose and predict the outcome in patients with lumbar disc herniation undergoing surgery and non-surgery treatment. The two quantitative clinical tests include: electromyographic measurements using Paraspinal Mapping and pain responses using Quantitative Sensory Pain Testing.

Overall Objective: To evaluate pain and functional status of patients undergoing surgical correction for lumbar herniated disc, pre- and post-surgery, using subjective (VAS, Oswestry, PSQI, Patient Expectation), as well as, objective measures of physical activity (triaxial accelerometry). Design and Methods: Two groups of subjects will be examined; 1) patients diagnosed with lumbar herniated disc undergoing minimally invasive microdiscectomy (MD), and 2) patients diagnosed with lumbar herniated disc undergoing open microlumbar discectomy (OD). Subjects who agree to participate, will be assessed (assessments listed below) after the diagnosis and prior to surgery. The subject will then be assessed postop and they will continue with follow-up after surgery with a visit at 3 weeks postop. Both methods of discectomy will be discussed with the subject. Once the subject has consented to participate (and prior to surgery), subjects will be randomized with a 50/50 chance of being placed in the MD or OD groups. Subjects will be distributed into the MD group and the OD group using a block randomization method. The study will be single blinded. A longitudinal, within group, comparison will be made to assess the change in the measured parameters. Data involving the MD and OD groups will be accumulated in a cross-sectional fashion. Subjects will be recruited from the referrals to the practices of the Orthopedic and Neurosurgeon Spine Surgeons at the Health Sciences Centre. This encompasses the majority of new and currently managed cases in the Manitoba and Northwestern Ontario. Subjects will be between the ages of 18 and 90. Male and female subjects will be recruited into the study. All patients will clinically demonstrate unilateral lower extremity pain in greater proportion to low back pain symptoms if present. Imaging (CT) will document single level lumbar herniated nucleus pulposis. Exclusion criteria will be cauda equina syndrome, progressive neurologic deficit, bilateral lower extremity symptoms, low back pain more than leg pain, the existence of significant co-morbidity (e.g. cardiac condition, disease, etc.) of any form, and any other physical limitations (musculoskeletal injury). Subjects participating will be required to speak and read English.

This study which was planned to investigate the factors affecting m. erector spinae (ES), m. multifidus (MF), m. psoas major (PM) and m. quadratus lumborum (QL), which stabilize the lumbar region in the case of disc herniation. In this study, the effects of disc herniation, herniation severity, age, and spinal biomechanics were investigated.

Purpose: The incidence of surgery for lumbar disc hernia varies. According to the national spine registries in Sweden, Norway and Denmark, there is a 30-60% difference in surgical incidence between these countries. The cause for this difference is not known. It may reflect a difference in incidence of lumbar disc hernia, but with a similar socio-economic and ethnical background in these countries, it is more likely that the differences are due to varying surgical indications. Comparing indications for surgery, patient reported outcome and factors predictive for outcome after surgery for lumbar disc hernia in these countries could provide information about optimal indications for surgery. Hypotheses: (i) there are no differences in patient-reported outcome after surgery between these countries, (ii) there are no differences in indications for surgery between these countries and (iii), factors that predict outcome are similar in these countries. Method of research: By using data from three Nordic national spine registers, we will compare baseline data, indications for surgery and patient reported outcome one year after surgery for lumbar disc herniation. Register based studies have advantages such as large sample sizes, reflecting real life, but they also have limitations such as lower follow-up rates than clinical trials. A non-response analysis will be performed to take this into account.