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Introduction: Painful lumbar spinal disorders represent a leading cause of disability in the US and worldwide. Interventional treatments for lumbar disorders are an effective treatment for the pain and disability from low back pain. Although many established and emerging interventional procedures are currently available, there exists a need for a defined guideline for their appropriateness, effectiveness, and safety. Objective: The ASPN Back Guideline was developed to provide clinicians the most comprehensive review of interventional treatments for lower back disorders. Clinicians should utilize the ASPN Back Guideline to evaluate the quality of the literature, safety, and efficacy of interventional treatments for lower back disorders. Methods: The American Society of Pain and Neuroscience (ASPN) identified an educational need for a comprehensive clinical guideline to provide evidence-based recommendations. Experts from the fields of Anesthesiology, Physiatry, Neurology, Neurosurgery, Radiology, and Pain Psychology developed the ASPN Back Guideline. The world literature in English was searched using Medline, EMBASE, Cochrane CENTRAL, BioMed Central, Web of Science, Google Scholar, PubMed, Current Contents Connect, Scopus, and meeting abstracts to identify and compile the evidence (per section) for back-related pain. Search words were selected based upon the section represented. Identified peer-reviewed literature was critiqued using United States Preventive Services Task Force (USPSTF) criteria and consensus points are presented. Results: After a comprehensive review and analysis of the available evidence, the ASPN Back Guideline group was able to rate the literature and provide therapy grades to each of the most commonly available interventional treatments for low back pain. Conclusion: The ASPN Back Guideline represents the first comprehensive analysis and grading of the existing and emerging interventional treatments available for low back pain. This will be a living document which will be periodically updated to the current standard of care based on the available evidence within peer-reviewed literature.

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OBJECTIVE: To determine the impact of the 2019 novel coronavirus disease (COVID-19) pandemic on operative case volume in 8 U.S. neurosurgical residency training programs in early 2020 and to survey these programs regarding training activities during this period. METHODS: A retrospective review was conducted of monthly operative case volumes and types for 8 residency programs for 2019 and January through April 2020. Cases were grouped as elective cranial, elective spine, and nonelective emergent cases. Programs were surveyed regarding residents' perceptions of the impact of COVID-19 on surgical training, didactics, and research participation. Data were analyzed for individual programs and pooled across programs. RESULTS: Across programs, the 2019 monthly mean ± SD case volume was 211 ± 82; 2020 mean ± SD case volumes for January, February, March, and April were 228 ± 93, 214 ± 84, 180 ± 73, and 107 ± 45. Compared with 2019, March and April 2020 mean cases declined 15% (P = 0.003) and 49% (P = 0.002), respectively. COVID-19 affected surgical case volume for all programs; 75% reported didactics negatively affected, and 90% reported COVID-19 resulted in increased research time. Several neurosurgery residents required COVID-19 testing; however, to our knowledge, only 1 resident from the participating programs tested positive. CONCLUSIONS: This study documents a significant reduction in operative volume in 8 neurosurgery residency training programs in early 2020. During this time, neurosurgery residents engaged in online didactics and research-related activities, reporting increased research productivity. Residency programs should collect data to determine the educational impact of the COVID-19 pandemic on residents' operative case volumes, identify deficiencies, and develop plans to mitigate any effects.

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Patients undergoing decompressive hemicraniectomy often have temporal wasting. We present a technique to manage temporalis wasting at the time of cranioplasty. Using poly methyl methacrylate, a small temporal implant is placed during cranioplasty. This is both a simple and cost effective technique for temporal augmentation at the time of cranioplasty.

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OBJECTIVE: The objective of this study was to compare the relative number of complications from peripherally inserted central venous catheters (PICC) and centrally inserted central venous catheters (CVC) in the neuroscience intensive care unit (NSICU). METHODS: This study was carried out in a 32-bed NSICU in a large academic hospital in the USA from July 2015 until January 2017. Patients admitted requiring central venous access were randomly assigned to have a PICC or CVC inserted. Complications were recorded and compared. The primary outcome was all complications as well as combined numbers of large vein thrombosis, central-line-associated blood stream infections, and insertional trauma. Outcomes were compared using the Fisher's exact test, logistic regression, or unpaired T tests, as appropriate. RESULTS: One hundred and fifty-two patients were enrolled; 72 were randomized to the PICC arm and 80 to the CVC arm. There were no crossovers, withdrawals, nor losses to follow-up. The study was stopped at the second pre-planned interim analysis for futility. The combined number of large vein thrombosis, central-line-associated blood stream infection, and insertional trauma was 4/72 in the PICC arm and 1/80 in the CVC group (OR 4.6 (95% CI 0.5-42.6) p = 0.14). The number of all complications in the PICC arm was 14/72 compared to 10/80 in the CVC arm (OR 1.7 (95% CI 0.7-4.1) p = 0.24). CONCLUSIONS: PICCs and CVCs have similar numbers of complications when placed in patients admitted to the NSICU.

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Neuromas are a difficult-to-treat peripheral nerve pathology that can cause crippling pain. Optimal treatment is widely debated as pharmacological intervention frequently is not sufficient and surgical interventions are plagued with recurrence. The majority of amputees report severe and chronic stump pain. Avoiding complex surgery at the stump site would prevent infection or wound dehiscence. Recent advances in neuromodulation with external pulse emitters allow for pain relief with localized nerve stimulation. The authors describe the novel placement of a sciatic nerve stimulator in a 77-year-old man for painful stump neuromas of the common peroneal and tibial nerves. The video can be found here: https://youtu.be/96kKs3qjtqc.

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This video abstract demonstrates the use of the expanded endoscopic endonasal approach for the resection of a retrochiasmatic craniopharyngioma. These tumors are notoriously difficult to treat, and many approaches have been tried to facilitate safe and effective resection. The endoscopic endonasal approach has been increasingly utilized for selected sellar/suprasellar pathology. We present the case of a 39-year-old man who was found to have a cystic, partially calcified suprasellar mass consistent with a craniopharyngioma. To facilitate robust skull base repair, a vascularized nasoseptal flap was harvested. A wide sphenoidotomy was performed and the sella and tuberculum were exposed. After the dural opening and arachnoid dissection, the stalk was identified, merging seamlessly with the tumor capsule. The lesion was then internally debulked with the use of an ultrasonic aspirator. The capsule was then dissected off of the optic chiasm, thalamus, and hypothalamus. The cavity was inspected with an angled endoscope to ensure complete resection. A multilayered reconstruction was performed using autologous fascia lata, the previously harvested nasoseptal flap, and dural sealant. Postoperatively, the patient did have expected panhypopituitarism but remained neurologically intact and had improvement in his vision. In conclusion, this video demonstrates how an expanded endonasal approach can be used to safely resect a craniopharyngioma, even when in close proximity to delicate structures such as the optic chiasm. The link to the video can be found at: https://youtu.be/tahjHmrXhc4 .

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Traumatic brain injury remains a serious public health problem, causing death and disability for millions. In order to maximize outcomes in the face of a complex injury to a complex organ, a variety of advanced neuromonitoring techniques may be used to guide surgical and medical decision-making. Because of the heterogeneity of injury types and the plethora of treatment confounders present in this patient population, the scientific study of specific interventions is challenging. This challenge highlights the need for a firm understanding of the anatomy and pathophysiology of brain injuries when making clinical decisions in the intensive care unit.

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This is the first reported case of an adult presenting with tethering symptoms, limb discrepancy on physical examination, a low-lying spinal cord, and duplicate filum terminale discovered intraoperatively. Intraoperative imaging and pathological analysis of a specimen confirmed the diagnosis of duplicate filum. This is the first reported adult case with duplication of the filum terminale. Release of both fila was necessary in this case to relieve the tethering symptoms.

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This is a case report illustrating an overdose of baclofen in a 10-year-old boy due to a likely malfunction of a SynchroMed II pump. This ultimately necessitated a pump replacement. One-year follow-up showed no further incidents of baclofen overdose, with multiple pump refills.

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