Neurosurgery clinics of North America
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The article discusses chronic pain rehabilitation and describes its components and some of the core operating principles. Outcomes in chronic pain are best when multiple treatment strategies with a focus on functional restoration are employed, and this is often best done in an interdisciplinary pain rehabilitation program.
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Neurosurg. Clin. N. Am. · Oct 2014
ReviewTechnological innovations in implants used for pain therapies.
The field of pain management has experienced tremendous growth in implantable therapies secondary to the innovations of bioengineers, implanters, and industry. Every aspect of neuromodulation is amenable to innovation from implanting devices to anchors, electrodes, programming, and even patient programmers. Patients with previously refractory neuropathic pain syndromes have new and effective pain management strategies that are a direct result of innovations in implantable devices.
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Peripheral nerve stimulation and peripheral nerve field stimulation involve the delivery of electrical stimulation using implanted electrodes either over a target nerve or over the painful area with the goal of modulating neuropathic pain. The selection of appropriate candidates for this therapy hinges on skillful application of inclusion and exclusion criteria, psychological screening, and an invasive screening trial. Patients with significant improvement in pain severity and pain-related disability during the trial are considered candidates for implantation of a permanent system. As with other implanted devices for neuromodulation, risks of mechanical failures, infection, and neurologic complications exist.
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Neurosurg. Clin. N. Am. · Oct 2014
ReviewNeurolysis, neurectomy, and nerve repair/reconstruction for chronic pain.
Neuropathic pain may be a result of focal injury to a peripheral nerve. The treatment algorithm begins with nonoperative, then operative, options. ⋯ Neurectomy is an option in primary cases where numbness is an acceptable alternative to dysesthetic pain, or as an alternative following failed neurolysis. Nerve repair or reconstruction may improve pain by guiding axons past the neuroma.
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Complex craniofacial pain can be a challenging condition to manage both medically and surgically, but there is a resurgence of interest in the role of neurostimulation therapy. Surgical options for complex craniofacial pain syndromes include peripheral nerve/field stimulation, ganglion stimulation, spinal cord stimulation, dorsal nerve root entry zone lesioning, motor cortex stimulation, and deep brain stimulation. Peripheral nerve/field stimulation is rapidly being explored and is preferred by both patients and surgeons. Technological advances and improved understanding of the interactions of pain pathways with its affective component will widen the scope of neurostimulation therapy for craniofacial pain syndromes.