Neuromodulation : journal of the International Neuromodulation Society
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Objective. To present a novel treatment approach for intractable inguinal neuralgia utilizing percutaneous peripheral electrostimulation. Materials and Methods. ⋯ Both patients who were on disability due to inguinal pain have been able to return to full-time employment. Conclusion. These preliminary results suggest that the technique described is effective and safe, and may be cost-effective as well.
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Intraspinal drug delivery systems are becoming increasingly utilized for the management of patients with pain or spasticity. Numerous potential complications associated with the use of this technology have previously been described in the literature. We have had experience with a new complication of the internal alarm being triggered by the instillation of cold solution into the pump resevoir. This new finding could have implications for patients with respect to unnecessary reevaluations of the pump, or possible premature scheduling of pump replacement surgery.
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Objective. Sensory feedback extracted from muscle afferents is an approach to achieve closed-loop control of paralyzed muscles using functional electrical stimulation (FES). The objective of the present study was to characterize the effect of agonist-antagonist electrical stimulation on nerve cuff recordings of muscle afferent activity. ⋯ It was suggested that the increased background activity could be attributed to the increased activity of the Golgi tendon organs. Conclusions. Sensory information about joint flexion and joint extension are preserved in muscle afferent recordings from electrically activated muscles at low and intermediate stimulation levels, but it still has to be shown whether muscle afferent information can be useful as sensory feedback in FES control.
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Objective. To evaluate changes in Minnesota Multiphasic Personality Inventory (MMPI) profiles pre- and post-treatment involving intrathecal opioid therapy. Patients and Methods. ⋯ Indeed, patients with the more normal profile pretreatment did not fare as well as those with the more elevated profile. A positive change in MMPI profile from pre- to post-treatment was associated with a higher level of pain reduction. Patient selection therefore should be based not on a single test such as the MMPI, but on consistency across multiple sources of information including physical examination, complaints of pain and disability, behavioral observations, and psychological testing.
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Objectives. To report complications associated with implant of the intrathecal drug delivery systems (IDDS). Patients and Methods. ⋯ Conclusion. IDDS are effective and safe devices for pain management. The complications associated with implants are mostly pharmacological and transient.