Surgical paddle-lead placement for screening trials of spinal cord stimulation. 2014

Peter A Pahapill
Naseff Specialty Center, United Neurosurgery Associates, St. Paul, MN, USA.

OBJECTIVE Spinal cord stimulation (SCS) has become an evidence-based treatment for a variety of chronic pain disorders. A key step in appropriate patient selection and long-term outcome predictability is a percutaneous screening trial of stimulation. Occasionally, a trial cannot be adequately completed with a percutaneous electrode. Rather than depriving this therapy from these patients, the authors have developed a program providing surgically implanted paddle-lead screening trials of SCS. METHODS Data from 22 patients undergoing paddle-lead screening trials of SCS from October 2009 to August 2012 were retrospectively reviewed. The surgical paddle leads were positioned with thoracic or cervical laminotomies under local anesthetic and conscious sedation, allowing awakened patients to confirm optimal lead placement. Externalized lead extensions were connected to an external pulse generator for a five-day screening trial. Pain reduction of at least 50% was required for patients to have the previously implanted paddle lead connected to an internalized pulse generator; otherwise, the trial surgical paddle leads were removed. RESULTS Twenty-two patients received five-day paddle-lead stimulation screening trials for various chronic neuropathic pain conditions. All paddle screening trials were well tolerated and completed as outpatient procedures. Sixteen patients received fully implanted systems. At an average follow-up of 23 months, all implanted patients continue to have satisfactory pain control. There were no infections, lead migrations, or revisions. CONCLUSIONS Surgically implanted paddle-lead screening trials of SCS can be used safely and effectively in those patients in which an adequate percutaneous-electrode trial cannot be completed. Results are similar to those seen with standard percutaneous screening trials. A systematic approach to surgical-paddle screening trials of SCS has not been previously reported.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010146 Pain An unpleasant sensation induced by noxious stimuli which are detected by NERVE ENDINGS of NOCICEPTIVE NEURONS. Suffering, Physical,Ache,Pain, Burning,Pain, Crushing,Pain, Migratory,Pain, Radiating,Pain, Splitting,Aches,Burning Pain,Burning Pains,Crushing Pain,Crushing Pains,Migratory Pain,Migratory Pains,Pains, Burning,Pains, Crushing,Pains, Migratory,Pains, Radiating,Pains, Splitting,Physical Suffering,Physical Sufferings,Radiating Pain,Radiating Pains,Splitting Pain,Splitting Pains,Sufferings, Physical
D010147 Pain Measurement Scales, questionnaires, tests, and other methods used to assess pain severity and duration in patients or experimental animals to aid in diagnosis, therapy, and physiological studies. Analgesia Tests,Analogue Pain Scale,Formalin Test,McGill Pain Questionnaire,Nociception Tests,Pain Assessment,Pain Intensity,Pain Severity,Tourniquet Pain Test,Visual Analogue Pain Scale,Analog Pain Scale,Assessment, Pain,McGill Pain Scale,Visual Analog Pain Scale,Analgesia Test,Analog Pain Scales,Analogue Pain Scales,Formalin Tests,Intensity, Pain,Measurement, Pain,Nociception Test,Pain Assessments,Pain Intensities,Pain Measurements,Pain Questionnaire, McGill,Pain Scale, Analog,Pain Scale, Analogue,Pain Scale, McGill,Pain Severities,Pain Test, Tourniquet,Questionnaire, McGill Pain,Scale, Analog Pain,Scale, Analogue Pain,Scale, McGill Pain,Severity, Pain,Test, Analgesia,Test, Formalin,Test, Nociception,Test, Tourniquet Pain,Tests, Nociception,Tourniquet Pain Tests
D004567 Electrodes, Implanted Surgically placed electric conductors through which ELECTRIC STIMULATION is delivered to or electrical activity is recorded from a specific point inside the body. Implantable Electrodes,Implantable Stimulation Electrodes,Implanted Electrodes,Implanted Stimulation Electrodes,Electrode, Implantable,Electrode, Implantable Stimulation,Electrode, Implanted,Electrode, Implanted Stimulation,Electrodes, Implantable,Electrodes, Implantable Stimulation,Electrodes, Implanted Stimulation,Implantable Electrode,Implantable Stimulation Electrode,Implanted Electrode,Implanted Stimulation Electrode,Stimulation Electrode, Implantable,Stimulation Electrode, Implanted,Stimulation Electrodes, Implantable,Stimulation Electrodes, Implanted
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000369 Aged, 80 and over Persons 80 years of age and older. Oldest Old

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