Neuromodulation : journal of the International Neuromodulation Society
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Restorative neurostimulation of the lumbar multifidus muscle is a novel therapy for chronic nonspecific low back pain (CLBP). Previous studies have excluded patients with prior lumbar surgery. In this study, we describe outcomes in patients with CLBP after prior lumbar surgery. ⋯ The early outcome profiles after restorative neurostimulation after lumbar spinal surgery are similar to those reported in patients without prior surgery. Further prospective clinical studies are required to establish the validity of these findings.
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Peripheral nerve stimulation (PNS) has emerged as a minimally invasive percutaneous procedure addressing neuropathic pain. However, the percutaneous cylindrical lead ultrasound-guided implantation procedure requires expertise that limits widespread PNS utilization. To overcome these challenges, a microinvasive endoscopy device has very recently been developed, enhancing the precision of PNS implantation by providing accurate visualization of the targeted nerve. We aimed to determine the feasibility, safety, clinical effectiveness, and energy consumption of PNS therapy by means of ultrasound guidance combined with microendoscopy. ⋯ Implanted PNS by means of ultrasound combined with microendoscopy was safe and provided clinical benefits with very low energy consumption (15-440 times less than spinal cord stimulation) in patients with upper or lower limb neuropathic pain. Microendoscopy would offer extended PNS indications, overcoming limitations associated with ultrasound alone. Future research is nonetheless needed to provide stronger evidence through randomized controlled trial design.
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Clinical interest in and utilization of peripheral nerve stimulation (PNS) for treating chronic pain has significantly increased in recent years owing to its potential for providing analgesia and improved function and quality of life in comparison with pharmacologic treatments. However, the relative infancy of PNS-specific systems and limited clinical practice guidance likely contribute to significant variation in PNS utilization patterns. ⋯ There is significant practice variation regarding the utilization of PNS across numerous key clinical considerations. Future research that explores the reasons driving these differences might help optimize patient selection, target selection, periprocedural management, and ultimately outcomes.
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Spinal cord stimulator (SCS) percutaneous lead placement has been effective in treating chronic limb, neck, and back pain. However, SCS lead placement poses a risk of neurologic injury, which may be attenuated with preprocedural magnetic resonance imaging (MRI) to identify potential spinal anatomical abnormalities (eg, central canal stenosis) that would either modify or prevent lead placement. However, a large-scale study of the clinical value of preoperative MRIs in percutaneous SCS lead placement is lacking. ⋯ Preprocedural MRIs did influence SCS trial progression. Given limited patient characteristics were significantly associated with a greater risk of stenosis at lead placement or entry zones, all patient populations should be considered for preprocedural MRIs examining lead entry and placement zones.
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Restorative neurostimulation for multifidus muscle is a novel therapy for chronic low back pain (CLBP). Optimal outcomes require interdisciplinary follow-up. We describe a clinical care pathway (CPW) for this therapy and report patient compliance, clinical outcomes, and patient satisfaction with the CPW. ⋯ The CPW facilitated clinical management and optimized outcomes in patients having restorative neurostimulation. Its design and delivery were very well accepted by patients.