Randomized Pragmatic Pilot Trial Comparing Perpendicular Thin Electrode Versus Parallel Thick Electrode Approaches for Lumbar Medial Branch Neurotomy in Facetogenic Low Back Pain

Pain Practice ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 889-907
Author(s):  
Javier De Andrés Ares ◽  
Fernando Gilsanz
2021 ◽  
pp. E521-E528

BACKGROUND: Chronic low back pain (CLBP) is an extremely prevalent disease, whose etiology is often multifactorial. Facet joint arthropathy is one of the most common causes of CLBP. Facet joints are innervated by the medial branches of the primary and adjacent level dorsal rami and are, therefore, key potential targets for the symptomatic management of CLBP. A lumbar medial branch nerve block (MBB) procedure is often used to assist in the diagnosis of facet mediated CLBP. For unclear reasons, some patients experience protracted relief of CLBP after diagnostic MBBs alone. OBJECTIVE: To describe the phenomenon of protracted relief of CLBP after diagnostic MBBs and search for predictors of this response. STUDY DESIGN: A retrospective chart review of patients who underwent MBB procedures by a single practitioner, over a 2 year period, was conducted. SETTING: All patients were seen at the Montefiore Multidisciplinary Pain Program, Bronx, NY. METHODS: Data from follow up visits was used to categorize patient’s response to MBBs as having no relief (NR), transient relief (TR) or protracted relief (PR). Patient demographics and characteristics were collected, and a multivariate analysis investigating associations with PR was conducted. RESULTS: 146 patients met inclusion criteria. 41 patients (28%) had NR, 54 (37%) had TR, and 51 (35%) had PR. CLBP symptom duration of < 6 months (P = 0.013) and unilateral back pain symptoms (P = 0.0253) were significantly associated with PR after MBB. LIMITATION: This is a retrospective study with a relatively small sample size conducted on patients belonging to a single practitioner. Outcomes were based largely on subjective patient satisfaction scores. CONCLUSIONS: In select patients, MBB may produce protracted relief of CLBP symptoms. The authors present distinct hypotheses which may help explain the therapeutic effects of diagnostic MBB procedures. KEY WORDS: Chronic low back pain, facet joint, medial branch nerve block


2019 ◽  
Vol 02 (02) ◽  
pp. 124-124
Author(s):  
Sanmartin Enriquez F. ◽  
Valera Garrido F. ◽  
Álvarez Prats D. ◽  
Carvajal Fernández O.

Abstract Background Low back pain is very common, affecting 15–20% of the population each year, and representing of the main causes of physical therapy consultations. Multiple treatments have been defined for chronic low back pain, however, the findings are still controversial, and therefore new and improved solutions are necessary for the population who suffers from low back pain. Aims To evaluate the effectiveness of ultrasound-guided percutaneous neuromodulation (US-guided PNM) in patients with non-radiating low back pain. Material and Methods An experimental study was performed in patients with non-radiating low back pain, between the months of march and may of 2018 at the F&S-Narón Physical Therapy clinic, in A Coruña. Functionality was evaluated via the Oswestry questionnaire and pain was evaluated using the visual analog scale (VAS). US-guided NMP was applied to stimulate the medial branch of a L2 posterior ramus and the iliohypogastric and ilioinguinal nerves, following the protocol described by Valera & Minaya, which consists of the application of a PES type current at 10Hz and 240 microseconds, during 15 seconds and for 6 applications. In total, 3 sessions were applied (sequence 1:7:7), once a week after the first week of initiating treatment. Results Initially, 12 patients participated in the study, aged between 32 and 59 years. The mean age was 41.4 years. Two of the patients abandoned the study due to personal reasons, unrelated to the research. The final sample consisted of 10 subjects, 50% of each sex. 80% of patients improved after the application of the treatment protocol. An important decrease in activity limitations was observed, from 14 to 4.35 points out of 100 according to the Oswestry questionnaire, and a decrease of 6.8 to 2.15 points out of 10 was observed on the VAS scale, which was statistically significant according to the Wilcoxon test (p < 0,05). Conclusions The ultrasound-guided percutaneous neuromodulation technique used was effective, obtaining positive results in relation to pain and functionality. Clinical studies are necessary with a greater sample size to confirm these findings.


Pain Medicine ◽  
2019 ◽  
Vol 20 (12) ◽  
pp. 2588-2597 ◽  
Author(s):  
Susan Lynn Murphy ◽  
Richard Edmund Harris ◽  
Nahid Roonizi Keshavarzi ◽  
Suzanna Maria Zick

Abstract Objective Chronic low back pain (CLBP) is associated with fatigue, pain, poor sleep, and disability. Acupressure is a low-risk treatment option used to manage symptoms in other groups, but its efficacy, particularly on fatigue and sleep, is unknown in CLBP. This study examined preliminary effects of two types of self-administered acupressure (relaxing and stimulating) on fatigue, pain, sleep, and reported disability. Methods A randomized pilot trial was conducted (N = 67) in which participants were randomized into six weeks of relaxing acupressure, stimulating acupressure, or usual care. Fatigue was measured by the Brief Fatigue Inventory, pain was measured by the Brief Pain Inventory, sleep was measured by the Pittsburgh Sleep Quality Index, and reported disability was measured by the Roland Morris Scale. Results Baseline characteristics were similar across groups. An intent-to-treat analysis using general linear models showed positive improvement in pain in acupressure groups compared with usual care. Pain was reduced by 35–36% in the acupressure groups. Improvement in fatigue was also found in stimulating acupressure compared with usual care. Adverse events were minimal and related to application of too much pressure. Discussion Although this was a small study, acupressure demonstrated promising preliminary support of efficacy for pain and fatigue reduction in this population.


2017 ◽  
Vol 19 (2) ◽  
pp. 101-109 ◽  
Author(s):  
Katarzyna Kozera ◽  
Bogdan Ciszek ◽  
Paweł Szaro

Posterior branches of the lumbar spinal nerves are the anatomic substrate of pain in the lower back, sacrum and the gluteal area. Such pain may be associated with various pathologies which cause pain in the posterior branches of the lumbar spinal nerves due to entrapment, mechanical irritation or inflammatory reaction and/or degeneration. The posterior branches are of significant functional importance, which is related to the function of the structures they supply, including facet joints, which are the basic biomechanical units of the spine. Low back pain caused by facet joint pathology may be triggered e.g. by simple activities, such as body rotations, unnatural positions, lifting heavy weights or excessive bending as well as chronic overloading with spinal hyperextension. Pain usually presents at the level of the lumbosacral junction (L 5 -S 1 ) and in the lower lumbar spine (L 4-5 , L 3-4 ). In the absence of specific diagnostic criteria, it is only possible to conclude that patients display tenderness at the level of the affected facet joint and that the pain is triggered by extension. Differential diagnosis for low back pain is difficult, since the pain may originate from various structures. The most reliable method of identifying Lumbar Facet Syndrome has been found to be a positive response to an analgesic procedure in the form of a block of the medial branch or intraarticular injection. There appear to be good grounds for conducting further studies and developing unequivocal diagnostic tests.


Trials ◽  
2011 ◽  
Vol 12 (1) ◽  
Author(s):  
Jong-In Kim ◽  
Tae-Hun Kim ◽  
Myeong Soo Lee ◽  
Jung Won Kang ◽  
Kun Hyung Kim ◽  
...  

Pain Medicine ◽  
2020 ◽  
Vol 21 (10) ◽  
pp. 2100-2104
Author(s):  
Bilal Aleem ◽  
Muhammad Muslim Mubashir ◽  
Erin Clark ◽  
Daniel Vardeh

Abstract Objective To compare periprocedural pain from mechanodesensitization (MD) with local anesthetic (LA) during medial branch blocks (MBBs), with a secondary outcome to compare diagnostic responses during the five hours postprocedure. Methods Forty-four patients with low back pain underwent three level bilateral MMBs. For the LA technique, 0.5 mL of 1% lidocaine was injected subcutaneously on one side, and for MD the skin was stretched using the index finger and thumb on the other. A 25-gauge 3.5-inch spinal needle was inserted over each target area, and the periprocedural pain was recorded on the numeric rating scale (NRS). After fluoroscopic positioning, the patient’s side preference was recorded. Patients were discharged with a pain diary to record pain scores every 30 minutes for five hours. Results Despite reporting higher pain scores with LA vs MD (P = 0.0462, mean difference ± SEM = 0.4924 ± 0.2459), global comparison favored LA. Pain scores with LA dropped from an average baseline of 6.11 to a mean NRS ± SEM of 2.461 ± 0.615, and with MD from 6.11 to 2.599 ± 0.552 (P ≤ 0.001). While there was no significant difference in area under the curve comparison over five hours (P = 0.3341), there was a trend toward lower pain scores with LA use. Conclusions LA before needle insertion for MBBs appears to be more painful compared with MD. Additionally, subcutaneously administered local anesthetic may have a therapeutic effect on nonspecific low back pain, resulting in a potentially false-positive test in the evaluation of lumbar facet pain.


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