1
|
Elkholy MAE, Nagaty A, Abdelbar AE, Simry HAM, Raslan AM. Effect of spinal cord stimulation on quality of life and opioid consumption in patients with failed back surgery syndrome. Pain Pract 2024; 24:261-269. [PMID: 37753793 DOI: 10.1111/papr.13300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
BACKGROUND Failed back surgery syndrome (FBSS) is a constellation of conditions occurring after spine surgeries, characterized by the presence of persistent or recurring low back pain that has a significant impact on patients' quality of life. Neuromodulation in the form of Spinal Cord Stimulation (SCS) is considered an indispensable treatment modality in the management of certain chronic pain conditions and it is showing good results for improvement in pain scores and functional capacity of the FBSS patients. OBJECTIVES To assess the change in pain scores, quality of life, and opioid medication intake as an outcome of neuromodulation procedures performed on patients diagnosed with failed back surgery syndrome, and to detect the post-procedure complications. METHODS A prospective observational study was conducted at two university hospitals in Egypt and the U.S.A. during the period from September 2019 to August 2021 for patients who underwent spinal cord stimulation procedures for FBSS with follow-up period of at least 1 year. Patients who are 18 years old or older diagnosed with FBSS for more than 6 months and treated with spinal cord stimulation with successful trials during this time frame were included in the study. RESULTS Thirty-four patients were included in this study who had successful SCS trials and underwent permanent implantation of SCS devices with post-procedure follow-up period of 12 months. Patients showed a median pain numerical rating scale (NRS) of 7/10 at baseline with a median NRS of 4/10 through the follow-up period. Basic mobility and daily activity scores assessed by activity measure of post-acute care (AM-PAC) showed significant improvement from the mean of 16.87 ± 2.74 at baseline to a mean of 19.97 ± 2.93 through follow-up. In addition, there was a reduction in opioid medication usage. Post-procedure complications was of low percentage with the most detected were battery dysfunction in 7 patients and pocket pain in 6 patients. Reoperation was needed in 13 patients with 4 needed just revision and 9 patients required a complete removal of the device. CONCLUSION Spinal cord stimulation is an effective modality of treatment for cases of failed back surgery syndrome with a statistically significant reduction in pain scores and a significant improvement in quality of life. Also, it achieves a recognizable reduction in opioid analgesic medications, with a reliable safety profile as detected with the recorded post-procedure complications. However, randomized controlled trials with more patients and long-term follow-up are highly recommended.
Collapse
Affiliation(s)
| | - Ahmed Nagaty
- Department of Neurosurgery and Spine Surgery, Ain Shams University, Cairo, Egypt
| | | | | | - Ahmed M Raslan
- Department of Neurological Surgery, Oregon Health and Science University, Portland, Oregon, USA
| |
Collapse
|
2
|
Dağıstan G, Özdemir I. Assessment of efficacy of percutaneous epidural neuroplasty for lumbar stenosis and failed back surgery syndrome: effective and safe? Eur Rev Med Pharmacol Sci 2023; 27:11303-11314. [PMID: 38095379 DOI: 10.26355/eurrev_202312_34569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
OBJECTIVE Chronic, refractory low back and lower extremity pain is a common problem. There are many causes for persistent low back pain, including spinal stenosis (SS), disc herniation, facet disease, sacroiliac disease, adjacent segment disease, ligamentous disease, and failed back surgery syndrome (FBSS). FBSS and SS are common and often result in chronic, persistent pain and disability. After the failure of conservative treatments, percutaneous epidural neuroplasty (PEN) is often used in managing low back pain. PATIENTS AND METHODS We retrospectively analyzed 117 patients who received PEN for FBSS and SS between January 2018 and January 2019. Clinical outcomes were assessed with the visual analogue scale (VAS) score and the Oswestry disability index (ODI). The follow-up period was 6 months. We aimed to evaluate the effectiveness of percutaneous epidural neuroplasty in managing chronic refractory low back and lower extremity pain secondary to FBSS and SS and to compare the differences between outcomes of SS and FBSS groups, before and after PEN. RESULTS Mean VAS scores were 6.15 ± 1.25 preoperatively, 2.97 ± 1.5 after 1 month, 3.18 ± 1.65 after 3 months, and 3.83 ± 1.64 after 6 months of follow-up. Mean ODI scores were 49.91 ± 13.87 preoperatively, 30.19 ± 12.01 after 1 month, 31.61 ± 12.46 after 3 months, 34.58 ± 12.52 after 6 months of follow-up. CONCLUSIONS Percutaneous epidural neuroplasty was shown to be a safe and effective treatment in managing refractory back/leg pain following FBSS and SS.
Collapse
Affiliation(s)
- G Dağıstan
- Anesthesiology and Reanimation Department (Algology), Faculty of Medicine, Akdeniz University, Antalya, Turkey.
| | | |
Collapse
|
3
|
Pallotta ML, Lovi A, Luca A, Babbi L, Brayda-Bruno M. Spinal cord stimulator medullary compression-a very rare SCS complication and surgical treatment. Spinal Cord Ser Cases 2022; 8:84. [PMID: 36241621 PMCID: PMC9568500 DOI: 10.1038/s41394-022-00550-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 08/06/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023] Open
Abstract
INTRODUCTION The risk of spinal cord damage after Spinal Cord Stimulator (SCS) implant is a very rare event. In our case report, the patient was affected by a progressively worsening spinal stenosis due to SCS compression. CASE REPORT The authors describe a progressive paraparesis in a 58-year-old woman with a long history of back pain and multiple spine surgeries. Computed tomography (CT) outlined vertebral canal stenosis corresponding to an electrode array implanted in T9. A posterior T8-T10 spinal cord decompression with explanation of the SCS device was performed and a partial neurological improvement was observed immediately postoperative. DISCUSSION Spinal cord stimulation has been used since 1967 for the treatment of refractory chronic pain, particularly failed back surgery syndrome (FBSS) and complex regional pain syndrome (CRPS). Still, the mechanism underlying its function is not completely clear. Moreover, complications are mainly related to implant dysfunction and the risk of direct and indirect spinal cord compression is described as exceptional in the literature. Our aim is to describe the case SCS device spinal cord direct compression and its surgical treatment.
Collapse
Affiliation(s)
- Maria Ludovica Pallotta
- Spine Surgery in IRCCS Galeazzi Hospital, Orthopedics and Traumatology Residency in Università degli Studi Di Milano, Milan, Italy.
| | - Alessio Lovi
- Spine Surgery in IRCCS Galeazzi Hospital, Milan, Italy
| | - Andrea Luca
- Spine Surgery in IRCCS Galeazzi Hospital, Milan, Italy
| | - Lisa Babbi
- Spine Surgery in IRCCS Galeazzi Hospital, Milan, Italy
| | | |
Collapse
|
4
|
Funao H, Yokosuka K, Ukai J, Nakanishi K, Paku M, Tomita T, Hoshino M, Saito T, Ishii K, Sato K. Efficacy of Minimally Invasive Trans-Sacral Canal Plasty between Patients with and without Failed Back Surgery Syndrome. Medicina (B Aires) 2022; 58:medicina58020251. [PMID: 35208574 PMCID: PMC8879517 DOI: 10.3390/medicina58020251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 01/21/2022] [Accepted: 02/01/2022] [Indexed: 12/02/2022] Open
Abstract
Background and Objectives: Clinicians are required to manage a growing number of elderly patients with several medical comorbidities, and invasive surgical treatments are sometimes not advisable for these patients. The aim of this study was to evaluate the efficacy of minimally invasive intraspinal canal treatment, trans-sacral canal plasty (TSCP), for patients with and without failed back surgery syndrome (FBSS). Materials and Methods: A multicenter analysis was conducted. TSCP was performed in patients with chronic low back pain and leg pain due to lumbar spinal disorders. An adhesiolysis by TSCP was carried out, then a mixture of steroid and local anesthesia was injected. Visual Analog Scales (VAS) for low back pain and leg pain, and complications were evaluated. Results: A total of 271 patients with a minimum 6-month follow-up were enrolled. There were 80 patients who had a history of previous lumbar spinal surgery (F group), and 191 patients without previous lumbar spinal surgery (N group). There were no significant differences in sex and age between the two groups. VAS scores for low back pain (N group/F group) preoperatively, immediately postoperatively, and 1 month, 3 months and 6 months postoperatively, were 51/52 mm, 24/26 mm, 33/34 mm, 30/36 mm, and 30/36 mm, respectively. VAS scores for leg pain were 69/67 mm, 28/27 mm, 39/41 mm, 36/43 mm, and 32/40 mm, respectively. Both VAS scores for low back pain and leg pain were significantly decreased from baseline to final follow-up in both groups (p < 0.01). However, VAS scores for leg pain at 3 months and 6 months postoperatively were significantly higher in F group (p < 0.05). There were three catheter breakages (2/3 in F group), and one dural tear in F group. Conclusions: TSCP significantly reduced both VAS scores for low back and leg pain in patients with and without FBSS. However, co-existence of intractable epidural adhesion might be associated with less improvement in FBSS.
Collapse
Affiliation(s)
- Haruki Funao
- Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare (IUHW), Narita 286-0048, Japan
- Department of Orthopaedic Surgery, International University of Health and Welfare (IUHW) Narita Hospital, Narita 286-8520, Japan
- Spine and Spinal Cord Center and Department of Orthopaedic Surgery, International University of Health and Welfare (IUHW), Mita Hospital, Tokyo 108-8329, Japan
- Correspondence: (H.F.); (K.I.); (K.S.); Tel.: +81-476-35-5600 (H.F. & K.I. & K.S.)
| | - Kimiaki Yokosuka
- Department of Orthopedic Surgery, Kurume University School of Medicine, Kurume 830-0011, Japan;
| | - Junichi Ukai
- Department of Orthopaedic Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya 466-8650, Japan;
| | - Kazuo Nakanishi
- Department of Orthopedics, Traumatology and Spine Surgery, Kawasaki Medical School, Kurashiki 701-0192, Japan;
| | - Masaaki Paku
- Department of Orthopaedic Surgery, Kansai Medical University, Osaka 573-1191, Japan; (M.P.); (T.S.)
| | - Takashi Tomita
- Department of Orthopedic Surgery, Aomori Prefectural Central Hospital, Aomori 030-8553, Japan;
| | - Masahiro Hoshino
- Department of Orthopaedic Surgery, Sonoda Medical Institute Tokyo Spine Center, Tokyo 121-0807, Japan;
| | - Takanori Saito
- Department of Orthopaedic Surgery, Kansai Medical University, Osaka 573-1191, Japan; (M.P.); (T.S.)
| | - Ken Ishii
- Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare (IUHW), Narita 286-0048, Japan
- Department of Orthopaedic Surgery, International University of Health and Welfare (IUHW) Narita Hospital, Narita 286-8520, Japan
- Spine and Spinal Cord Center and Department of Orthopaedic Surgery, International University of Health and Welfare (IUHW), Mita Hospital, Tokyo 108-8329, Japan
- Correspondence: (H.F.); (K.I.); (K.S.); Tel.: +81-476-35-5600 (H.F. & K.I. & K.S.)
| | - Koji Sato
- Department of Orthopaedic Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya 466-8650, Japan;
- Correspondence: (H.F.); (K.I.); (K.S.); Tel.: +81-476-35-5600 (H.F. & K.I. & K.S.)
| |
Collapse
|
5
|
Knotkova H, Hamani C, Sivanesan E, Le Beuffe MFE, Moon JY, Cohen SP, Huntoon MA. Neuromodulation for chronic pain. Lancet 2021; 397:2111-2124. [PMID: 34062145 DOI: 10.1016/s0140-6736(21)00794-7] [Citation(s) in RCA: 147] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 03/24/2021] [Accepted: 03/31/2021] [Indexed: 12/23/2022]
Abstract
Neuromodulation is an expanding area of pain medicine that incorporates an array of non-invasive, minimally invasive, and surgical electrical therapies. In this Series paper, we focus on spinal cord stimulation (SCS) therapies discussed within the framework of other invasive, minimally invasive, and non-invasive neuromodulation therapies. These therapies include deep brain and motor cortex stimulation, peripheral nerve stimulation, and the non-invasive treatments of repetitive transcranial magnetic stimulation, transcranial direct current stimulation, and transcutaneous electrical nerve stimulation. SCS methods with electrical variables that differ from traditional SCS have been approved. Although methods devoid of paraesthesias (eg, high frequency) should theoretically allow for placebo-controlled trials, few have been done. There is low-to-moderate quality evidence that SCS is superior to reoperation or conventional medical management for failed back surgery syndrome, and conflicting evidence as to the superiority of traditional SCS over sham stimulation or between different SCS modalities. Peripheral nerve stimulation technologies have also undergone rapid development and become less invasive, including many that are placed percutaneously. There is low-to-moderate quality evidence that peripheral nerve stimulation is effective for neuropathic pain in an extremity, low quality evidence that it is effective for back pain with or without leg pain, and conflicting evidence that it can prevent migraines. In the USA and many areas in Europe, deep brain and motor cortex stimulation are not approved for chronic pain, but are used off-label for refractory cases. Overall, there is mixed evidence supporting brain stimulation, with most sham-controlled trials yielding negative findings. Regarding non-invasive modalities, there is moderate quality evidence that repetitive transcranial magnetic stimulation does not provide meaningful benefit for chronic pain in general, but conflicting evidence regarding pain relief for neuropathic pain and headaches. For transcranial direct current stimulation, there is low-quality evidence supporting its benefit for chronic pain, but conflicting evidence regarding a small treatment effect for neuropathic pain and headaches. For transcutaneous electrical nerve stimulation, there is low-quality evidence that it is superior to sham or no treatment for neuropathic pain, but conflicting evidence for non-neuropathic pain. Future research should focus on better evaluating the short-term and long-term effectiveness of all neuromodulation modalities and whether they decrease health-care use, and on refining selection criteria and treatment variables.
Collapse
Affiliation(s)
- Helena Knotkova
- MJHS Institute for Innovation in Palliative Care, New York, NY, USA; Department of Family and Social Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Clement Hamani
- Division of Neurosurgery, Sunnybrook Health Sciences Centre, Sunnybrook Research Institute, Harquail Centre for Neuromodulation, University of Toronto, Toronto, ON, Canada
| | - Eellan Sivanesan
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | - Jee Youn Moon
- Department of Anesthesiology, Seoul National University, Seoul, South Korea
| | - Steven P Cohen
- Department of Neurology, Department of Physical Medicine & Rehabilitation, and Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA; Department of Anesthesiology and Department of Physical Medicine & Rehabilitation, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
| | - Marc A Huntoon
- Department of Anesthesiology, Virginia Commonwealth University, Richmond, VA, USA
| |
Collapse
|
6
|
Pahapill PA, Chen G, Arocho-Quinones EV, Nencka AS, Li SJ. Functional connectivity and structural analysis of trial spinal cord stimulation responders in failed back surgery syndrome. PLoS One 2020; 15:e0228306. [PMID: 32074111 PMCID: PMC7029839 DOI: 10.1371/journal.pone.0228306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 01/13/2020] [Indexed: 01/02/2023] Open
Abstract
Background Chronic pain has been associated with alterations in brain structure and function that appear dependent on pain phenotype. Functional connectivity (FC) data on chronic back pain (CBP) is limited and based on heterogeneous pain populations. We hypothesize that failed back surgery syndrome (FBSS) patients being considered for spinal cord stimulation (SCS) therapy have altered resting state (RS) FC cross-network patterns that 1) specifically involve emotion and reward/aversion functions and 2) are related to pain scores. Methods RS functional MRI (fMRI) scans were obtained for 10 FBSS patients who are being considered for but who have not yet undergone implantation of a permanent SCS device and 12 healthy age-matched controls. Seven RS networks were analyzed including the striatum (STM). The Wilcoxon signed-rank test evaluated differences in cross-network FC strength (FCS). Differences in periaqueductal grey (PAG) FC were assessed with seed-based analysis. Results Cross-network FCS was decreased (p<0.05) between the STM and all other networks in these FBSS patients. There was a negative linear relationship (R2 = 0.76, p<0.0022) between STMFCS index and pain scores. The PAG showed decreased FC with network elements and amygdala but increased FC with the sensorimotor cortex and cingulate gyrus. Conclusions Decreased FC between STM and other RS networks in FBSS has not been previously reported. This STMFCS index may represent a more objective measure of chronic pain specific to FBSS which may help guide patient selection for SCS and subsequent management.
Collapse
Affiliation(s)
- Peter A. Pahapill
- Department of Neurosurgery, U.S. Department of Veterans Affairs Medical Center, Milwaukee, Wisconsin, United States of America
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Guangyu Chen
- Department of Biophysics, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Elsa V. Arocho-Quinones
- Department of Neurosurgery, U.S. Department of Veterans Affairs Medical Center, Milwaukee, Wisconsin, United States of America
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
- * E-mail:
| | - Andrew S. Nencka
- Center for Imaging Research, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Shi-Jiang Li
- Department of Biophysics, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| |
Collapse
|
7
|
Canos A, Cort L, Fernández Y, Rovira V, Pallarés J, Barberá M, Morales-Suárez-Varela M. Preventive Analgesia with Pregabalin in Neuropathic Pain from “Failed Back Surgery Syndrome”: Assessment of Sleep Quality and Disability. Pain Med 2017; 17:344-52. [PMID: 26398133 DOI: 10.1111/pme.12895] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Pregabalin group (PGB) is an antiepileptic used to treat neuropathic pain. We evaluated analgesic efficacy and safety for postoperative/chronic pain, disability, and sleep quality in patients who underwent spine surgery administered with PGB, or not, during the presurgical and postsurgical periods. DESIGN Retrospective cohort study of 60 patients (two groups with 30 patients) with full information on 50 (29 with PGB and 21 without PGB). Ten patients were dismissed as information was lacking. The PGB group (P) (29 patients) received 75 mg/12 hours before surgery, 150 mg 10 hours after surgery, and 150 mg/12 hours 3 days after surgery. The control group (C; 21 patients) took no PGB. METHODS Neuropathic pain was assessed before surgery, and 2 and 6 months later using visual analog scales (VAS), DN4, disability (Oswestry), and sleep quality. No serious adverse events occurred with PGB. RESULTS The median VAS pain score at rest was lower in the PGB group at 2 months postsurgery (1 vs 2, P = 0.032), as was the median DN4 score (0 vs 3, P = 0.032) and the median Oswestry disability index (ODI: 12 vs 18, P = 0.001). At 6 months postsurgery, pain scores were also lower in the PGB group for VAS (0 vs 4, P = 0.001), DN4 score (0 vs 4, P = 0.001) and the ODI (10 vs 24, P = 0.001). Improvement in the functionality and sleep quality of the PGB group was noteworthy (P = 0.018). CONCLUSIONS PGB has analgesic/antihyperalgesic effects on postoperative neuropathic pain after surgery for lumbar disc hernia. Our findings show that this benefit increases with time.
Collapse
|
8
|
Pereira P, Avelino A, Monteiro P, Vaz R, Castro-Lopes JM. New insights from immunohistochemistry for the characterization of epidural scar tissue. Pain Physician 2014; 17:465-474. [PMID: 25247903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND The association between epidural fibrosis and recurrent symptoms after lumbar spine surgery remains a matter of debate in scientific literature and the underlying pathophysiological mechanism has not been clearly elucidated. OBJECTIVE To investigate the presence of nerve fibers and the expression of osteopontin in epidural fibrous tissue after lumbar surgery in humans. STUDY DESIGN Laboratory study of human tissue samples. METHODS Twenty-four patients with persistent or recurrent low back and/or leg pain after lumbar spine surgery, in whom no relevant findings were present on magnetic resonance imaging (MRI) besides epidural scar tissue, were submitted to epiduroscopy. Biopsy samples of epidural scar tissue resting in the posterior epidural and periradicular space were obtained from 15 patients, using an endoscopic grasping forceps, in locations where the stimulation with the tip of a Fogarty consistently reproduced pain. Biopsy samples were processed for examination under optical and transmission electron microscopes and under a fluorescence microscope after incubation in primary antibodies against beta3-tubulin or against osteopontin. RESULTS Optical and transmission electron microscopy revealed a homogeneous fibrous tissue rich in collagen and lacking nerve fibers. No immunofluorescence was present in any of the samples immunoreacted against beta3-tubulin. In the samples immunoreacted against osteopontin, a punctate signal was detected around the collagen fibers. LIMITATIONS Being a human study, there was no control group, so it is not possible to determine the contribution of osteopontin in the formation of epidural fibrosis and its relation to the patients' symptoms. Additional animal studies are needed to investigate these issues. CONCLUSION Rather than direct stimulation of nociceptors in the epidural scar tissue, other factors should relate epidural fibrosis and recurrent symptoms after lumbar spine surgery. Osteopontin seems to play a role in the formation of epidural fibrosis.
Collapse
|
9
|
Dworkin RH, O’Connor AB, Kent J, Mackey SC, Raja SN, Stacey BR, Levy RM, Backonja M, Baron R, Harke H, Loeser JD, Treede RD, Turk DC, Wells CD. Interventional management of neuropathic pain: NeuPSIG recommendations. Pain 2013; 154:2249-2261. [PMID: 23748119 PMCID: PMC4484720 DOI: 10.1016/j.pain.2013.06.004] [Citation(s) in RCA: 281] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 05/24/2013] [Accepted: 06/03/2013] [Indexed: 11/30/2022]
Abstract
Neuropathic pain (NP) is often refractory to pharmacologic and noninterventional treatment. On behalf of the International Association for the Study of Pain Neuropathic Pain Special Interest Group, the authors evaluated systematic reviews, clinical trials, and existing guidelines for the interventional management of NP. Evidence is summarized and presented for neural blockade, spinal cord stimulation (SCS), intrathecal medication, and neurosurgical interventions in patients with the following peripheral and central NP conditions: herpes zoster and postherpetic neuralgia (PHN); painful diabetic and other peripheral neuropathies; spinal cord injury NP; central poststroke pain; radiculopathy and failed back surgery syndrome (FBSS); complex regional pain syndrome (CRPS); and trigeminal neuralgia and neuropathy. Due to the paucity of high-quality clinical trials, no strong recommendations can be made. Four weak recommendations based on the amount and consistency of evidence, including degree of efficacy and safety, are: 1) epidural injections for herpes zoster; 2) steroid injections for radiculopathy; 3) SCS for FBSS; and 4) SCS for CRPS type 1. Based on the available data, we recommend not to use sympathetic blocks for PHN nor radiofrequency lesions for radiculopathy. No other conclusive recommendations can be made due to the poor quality of available data. Whenever possible, these interventions should either be part of randomized clinical trials or documented in pain registries. Priorities for future research include randomized clinical trials, long-term studies, and head-to-head comparisons among different interventional and noninterventional treatments.
Collapse
Affiliation(s)
- Robert H. Dworkin
- Departments of Anesthesiology and Neurology and Center for Human Experimental Therapeutics, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA
| | | | - Joel Kent
- University of Rochester, Rochester, NY, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Vercauteren M, Waets P, Pitkänen M, Förster J. Neuraxial techniques in patients with pre-existing back impairment or prior spine interventions: a topical review with special reference to obstetrics. Acta Anaesthesiol Scand 2011; 55:910-7. [PMID: 21574965 DOI: 10.1111/j.1399-6576.2011.02443.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Many anaesthetists consider neurological disorders of all kinds as a contraindication for regional anaesthesia particularly for neuraxial techniques. This hesitation is partly rooted in fears of medicolegal problems but also in the heterogeneous literature. Therefore, the present topical review is an attempt to describe the feasibility and the risks of neuraxial techniques in patients with spinal injury, anatomical compromise, chronic back pain or previous spinal interventions, ranging from 'minor' types like epidural blood patches to major surgery such as Harrington fusions. Most reviews and case reports were describing experiences in obstetrics as these patients are more likely to insist on neuraxial blocks. In the acute phase of new neurologic injury, general anaesthesia may be the technique of choice to prevent further haemodynamic and respiratory deterioration. After the acute phase, current evidence is mostly reassuring with respect to the risks of neuraxial blocks as they may even be recommendable in some conditions. Ultrasound technology may be of additional help to increase the success rate. A careful pre-operative examination remains mandatory, while patients should be sufficiently informed about technical aspects and possible relapses or progression of their disease. When necessary, patients should have additional technical and clinical examinations as close as possible to surgery to establish the actual pre-operative status. Most patients may benefit more from spinal techniques rather than from less reliable epidural ones. High concentrations and volumes of local anaesthetics should be avoided at all times, especially in patients with nerve compression, large disc herniation or spinal stenosis.
Collapse
Affiliation(s)
- M Vercauteren
- Department of Anaesthesia, Antwerp University Hospital, Edegem, Belgium.
| | | | | | | |
Collapse
|
11
|
Manchikanti L, Singh V, Cash KA, Pampati V, Datta S. Preliminary results of a randomized, equivalence trial of fluoroscopic caudal epidural injections in managing chronic low back pain: Part 3--Post surgery syndrome. Pain Physician 2008; 11:817-831. [PMID: 19057628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND Post surgery syndrome resulting in persistent pain following lumbar spine surgery is common. Speculated causes of post lumbar surgery syndrome include stenosis, degeneration of adjacent segments, internal disc disruption, recurrent disc herniation, retained disc fragment, epidural or intraneural fibrosis, radiculopathy, and various other causes. Epidural injections are most commonly used in post surgery syndrome. There is lack of evidence for the effectiveness of epidural injections in managing chronic low back pain with or without lower extremity pain secondary to post surgery syndrome. STUDY DESIGN A randomized, double-blind, equivalence trial. SETTING An interventional pain management practice, a specialty referral center, a private practice setting in the United States. OBJECTIVES To evaluate the effectiveness of caudal epidural injections in patients with chronic low back and lower extremity pain after surgical intervention with post lumbar surgery syndrome. METHODS Patients were randomly assigned to one of 2 groups; Group I patients received caudal epidural injections with local anesthetic (lidocaine 0.5%), whereas Group II patients received caudal epidural injections with 0.5% lidocaine 9 mL mixed with 1 mL of 6 mg non-particulate Celestone. Randomization was performed by computer-generated random allocation sequence by simple randomization. OUTCOMES ASSESSMENT Multiple outcome measures were utilized which included the Numeric Rating Scale (NRS), the Oswestry Disability Index 2.0 (ODI), employment status, and opioid intake with assessment at 3 months, 6 months, and 12 months post-treatment. Significant pain relief was described as 50% or more, whereas significant improvement in the disability score was defined as a reduction of 40% or more. RESULTS Significant pain relief (> or =50%) was recorded in 60% to 70% of the patients with no significant differences noted with or without steroid over a period of one-year. In addition, functional assessment measured by the ODI also showed significant improvement with at least 40% reduction in Oswestry scores in 40% to 55% of the patients. The average procedures per year were 3.4 with an average total relief per year of 31.7 +/- 19.10 weeks in Group I and 26.2 +/- 18.34 weeks in Group II over a period of 52 weeks. LIMITATIONS The results of this study are limited by the lack of a placebo group and the preliminary report size of only 20 patients in each group. CONCLUSION Caudal epidural injections in chronic function-limiting low back pain in post surgery syndrome without facet joint pain demonstrated effectiveness with over 55% of the patients showing improvement in functional status with significant pain relief in 60% to 70%.
Collapse
|