Clinical Research Directory

Comparative Effectiveness of Two Different Approaches to Radiofrequency Ablation of Lumbar Medial Branch Nerves

The purpose of this voluntary research study is to determine whether the parasagittal approach to lumbar medial branch (LMB) nerve radio frequency ablation (RFA) will have greater efficacy than the traditional approach to lumbar medial branch nerve radio frequency ablation.

Regional Anesthesia in Minimally Invasive Lumbar Spine Surgery

Opioid overuse is a widespread public health crisis in the United States with increasing rates of addiction and overdose deaths from prescription opioids. Reducing the need for opiate analgesics in the post-operative setting has become a high priority in minimizing long-term opioid use in surgical patients. This study will serve to demonstrate the efficacy of the addition of regional analgesic techniques in reducing post-operative opioid requirements in patients undergoing common lumbar spinal surgical procedures.

The NOTICE Study: Neurosurgery and OrThopedIcs Communication Evaluation Study Following Lumbar Fusions

The purpose of this single-blind, randomized, controlled study is to assess the efficacy of "informative text messages" vs "traditional handouts" provided to lumbar spine surgery patients post-operatively.

RFA Using Multi-Tined Electrodes vs.Traditional Electrodes for Lumbar Spondylosis

Spondylosis is an anatomical defect of the small facet joints between the spinal vertebrae often due to load bearing and mechanical wear. It is a major contributor to lower back pain. The current standard of care in patients diagnosed with spondylosis in the lower back is to perform a radiofrequency ablation (RFA) of the lumbar medial branch nerves which carry the pain signals from that region to the brain. RFA accomplishes this by using radio waves transmitted through inserted electrodes. This leads to a temporary lesion or "burn"; stopping the pain signals from being transmitted as as well as changing the pain signals themselves. The electrodes themselves do not heat up but instead cause ions in the surrounding tissue to vibrate and heat up. When performing the procedure at the UAMS pain clinic, one can use the Stryker system with a single electrode end which protrudes out of the cannula or the Stratus Nimbus electrode with two prongs which expand in a "V"; formation along the sides of the cannula. While testing in chicken tissue shows that the latter electrode type produces a larger lesion size, anecdotal evidence suggests that it may lead to longer term pain relief. As such, the choice is currently left up to physician preference as both are FDA approved for use in this condition. This study is trying to assess if the larger lesion size results in a reduction in impairment of activities of daily living due to pain measured by the patient-reported PROMIS (Patient Reported Measurement Information System)-29 questionnaire. The PROMIS-29 is given to all patients who are seen in the UAMS Pain Clinic at initial and follow-up visits. In this study we would like to randomize what electrode and cannula set is used in RFA for patient's who are already going to be receiving the procedure for treatment for their spondylosis. The study team would then compare the PROMIS outcomes between cases that used the Stryker and Stratus Nimbus electrodes at 1,3,6,9 and 12 months. It is hypothesized that the Nimbus electrode will result in a greater reduction and improvement in PROMIS scores for a longer duration than the Stryker electrode.

Correlation Between Radiculopathy And Quality Of Life In Patients With Chronic Lumbar Spondylosis

This study will be conducted to answer the following question: Is there a Correlation Between Lumbar Radiculopathy and Quality of Life in Patients with chronic lumbar spondylosis?

To Brace or Not to Brace for Single Level Lumbar Fusion Pilot

The use of a lumbar brace following single-level lumbar fusion for degenerative spondylosis (non-traumatic) is variable between surgeons. Some surgeons prefer to prescribe a brace and others do not. There is a lack of guidelines and evidence to support either treatment option. The purpose of this study is to assess feasibility and collect preliminary data to conduct a larger, definitive trial to provide evidence as to whether prescribing a brace or not results in better or equal outcomes. Imaging by CT scan, one year after surgery, will be used to analyze bone fusion (healing), and functional and pain scores from patients during their recovery will be compared to identify differences between patients who wore a brace and those who did not.