Publications by authors named "Dreyfuss P"
Objective: To determine if commonly used knee radiofrequency ablation (RFA) techniques would be able to completely denervate the knee joint.
Methods: A comprehensive search of the literature on knee joint innervation was conducted using the databases Medline, Embase, and PubMed from inception through February 1, 2019. Google Scholar was also searched.
Article Synopsis
- * It involved a cadaveric fluoroscopy setup where the researchers mapped lesions created by seven RFA techniques, comparing their effectiveness based on capture rates of the LBs.
- * Results showed bipolar techniques had significantly higher capture rates than monopolar techniques, suggesting that bipolar methods might be more effective in clinical applications, prompting the need for further in vivo studies.
Background: Current sacroiliac joint (SIJ) cooled radiofrequency (RF) is based on fluoroscopic anatomy of lateral branches (LBs) in three specimens. Recent studies confirm significant variation in LB positions.
Objectives: To determine if common fluoroscopic needle placements for cooled SIJ RF are adequate to lesion all S1-3 LBs.
Background: Epidural corticosteroid injections are a common treatment for radicular pain caused by intervertebral disc herniations, spinal stenosis, and other disorders. Although rare, catastrophic neurologic injuries, including stroke and spinal cord injury, have occurred with these injections.
Methods: A collaboration was undertaken between the U.
Background: Lumbar transforaminal epidural injections are commonly utilized to treat radicular pain due to intervertebral disc herniation.
Objective: This study aims to determine if there was a major difference in effectiveness between particulate and nonparticulate corticosteroids for acute radicular pain due to lumbar disc herniation.
Design: A multicenter, double blind, prospective, randomized trial on 78 consecutive subjects with acute uni-level disc herniation resulting in unilateral radicular pain.
The article by Grutters et al. on using real options analysis to investigate the adoption of medical technology in The Netherlands, published in this issue of , is reviewed.
View Article and Find Full Text PDFObjectives: To describe how the anatomy of the cervicothoracic vertebrae predicates the appropriate fluoroscopic views for confirming safe needle placement during the performance of interlaminar cervical epidural injections.
Methods And Results: Illustrations, cadaver models, and radiographic images were correlated and used to illustrate and derive a mathematical model to demonstrate the utility of a contralateral oblique fluoroscopic view during the performance of cervical interlaminar injections.
Conclusions: When confirming needle placement during a cervical interlaminar epidural injection, in addition to the anterior-posterior fluoroscopic view, the oblique image, contralateral to the needle tip position, may provide superior information to that afforded by a lateral view.
Objective: To present two case reports of a rare but devastating injury after image-guided, lumbar transforaminal injection of steroids, and to explore features in common with previously reported cases.
Background: Image (fluoroscopic and computed tomography [CT])-guided, lumbar transforaminal injections of corticosteroids have been adopted as a treatment for radicular pain. Complications associated with these procedures are rare, but can be severe.
Objective: To determine the presence of lumbar multifidus atrophy and pain after successful lumbar medial branch radiofrequency neurotomy for zygapophysial joint mediated pain.
Design: A prospective observational analysis of 5 patients who had undergone successful unilateral radiofrequency neurotomy (RFN) of the lumbar medial branch divisions of the lumbar dorsal rami. At 17 to 26 months after RFN, 3 blinded radiologists evaluated the relative composition and size of the multifidus muscle at different segmental levels on lumbar magnetic resonance imaging (MRI).
Background: Confusion persists concerning the nature and efficacy of procedures variously known as facet denervation, lumbar medial branch radiofrequency neurotomy, and radiofrequency neurotomy or denervation for the treatment of back pain. Systematic reviews have not recognized the importance of patient selection and correct surgical technique when appraising the literature. As a result, negative conclusions about procedures have been drawn because lack of efficacy of one procedure has been misattributed to other, cognate, but different procedures.
View Article and Find Full Text PDFObjective: To determine the physiologic effectiveness of multi-site, multi-depth sacral lateral branch injections.
Design: Double-blind, randomized, placebo-controlled study.
Setting: Outpatient pain management center.
Objective: To determine the effect of intravenous sedation on postprocedural pain relief for patients undergoing a spinal injection procedure in which there is no expectation of immediate relief.
Design: A prospective audit to compare Visual Analog Scale (VAS) responses before and after interlaminar epidural corticosteroid injections without epidural anesthetic in those who did and did not receive intravenous sedation.
Setting: This audit was undertaken in 2 interventional spine practices.
Objective: The objective of this benchtop study was to establish if single site, long duration intradiscal radiofrequency (RF) at two different positions could generate adequate heating throughout the intervertebral disc to potentially ablate intradiscal nociceptors.
Design: The disarticulated cervical spines from four fresh frozen cadavers were studied. Temperature recording was completed from two different positions of the RF needle.
Objective: To determine the physiologic effectiveness of single site, single depth sacral lateral branch injections.
Design: Randomized, controlled, and double-blinded study.
Setting: Outpatient pain management center.
Objective: To determine hip joint pain referral patterns.
Design: Retrospective analysis. Setting.
Objectives: Cervical transforaminal epidural injections of corticosteroids have been used in the treatment of radicular pain. Particulate agents have been associated with rare adverse neurological outcomes. It is unknown whether nonparticulate preparations are any less effective than particulate preparations.
View Article and Find Full Text PDFThe sacroiliac joint is a source of pain in the lower back and buttocks in approximately 15% of the population. Diagnosing sacroiliac joint-mediated pain is difficult because the presenting complaints are similar to those of other causes of back pain. Patients with sacroiliac joint-mediated pain rarely report pain above L5; most localize their pain to the area around the posterior superior iliac spine.
View Article and Find Full Text PDFArticle Synopsis
- IDET is a treatment for discogenic low back pain that has not been thoroughly tested for effectiveness against a placebo.
- The study involved a randomized, placebo-controlled trial with 64 eligible patients suffering from long-term low back pain, who were split into two groups: one receiving IDET and the other receiving sham treatment.
- Results showed that those treated with IDET had significantly greater improvements in pain, disability, and depression compared to the sham group, indicating the treatment's potential efficacy.
Fluoroscopically guided interlaminar cervical epidural injections.
Arch Phys Med Rehabil
October 2003
Background Context: This is a synopsis of a symposium presented to the North American Spine Society Annual Meeting in Montreal, Canada, 2002.
Purpose: To provide the reader with a distillation of the material presented regarding the diagnosis of failed back surgery syndrome (FBSS).
Methods: Panel presentation.