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f rolandic pediatric AVMs yields excellent AVM obliteration with minimal neurological morbidity in selected patients. The incorporation of surgical adjuncts, including neurophysiological monitoring and neuronavigation, allows accurate demarcation of functional cortex and enables effective resection.<br /><br /> Biportal endoscopic spinal surgery has been performed for several years, and its effectiveness is well known; however, no studies on its safety, specifically intracranial pressure, have been conducted to date. The authors sought to evaluate the effect of biportal endoscopic lumbar discectomy on intracranial pressure by monitoring cervical epidural pressure (CEP) changes throughout the procedure.<br /><br /> Twenty patients undergoing single-level biportal endoscopic lumbar discectomy were enrolled in this study. CEPs were monitored throughout the procedure, consisting of phase 1, establishing the surgical portal and working space; phase 2, performing decompression and discectomy; and phase 3, turning off the fluid irrigation system. After discectomy was completed, the authors evaluated changes in CEP as the irrigation pressure increased serially by adding phase 4, increasing irrigation pressure with outflow open; and phase 5, increasing irrigation pressure with outflow closed.<br /><br /> The mean baseline CEP was measured as 16.65 mm Hg. In phase 1, the mean CEP was 17.3 mm Hg, which was not significantly different from the baseline CEP. In phase 2, the mean CEP abruptly increased up to 35.1 mm Hg when the epidural space was first connected with the working space, followed by stabilization of the CEP at 31.65 mm Hg. In phase 4, the CEP increased as the inflow pressure increased, showing a linear correlation, but not in phase 5. No patients experienced neurological complications.<br /><br /> It is important to ensure that irrigation fluid is not stagnant and is maintained continuously. More attention must be paid to keeping pressures low when opening the epidural space.<br /><br />It is important to ensure that irrigation fluid is not stagnant and is maintained continuously. More attention must be paid to keeping pressures low when opening the epidural space.<br /><br /> Although increased signal intensity (ISI) on MRI is observed in patients with cervical spinal cord injury (SCI) without major bone injury, alterations in ISI have not been evaluated. The association between postoperative ISI and surgical outcomes remains unclear. This study elucidated whether or not the postoperative classification and alterations in MRI-based ISI of the spinal cord reflected the postoperative symptom severity and surgical outcomes in patients with SCI without major bone injury.<br /><br /> One hundred consecutive patients with SCI without major bone injury (79 male and 21 female) with a mean age of 55 years (range 20-87 years) were included. All patients were treated with laminoplasty and underwent MRI pre- and postoperatively (mean 12.5 ± 0.8 months). ISI was classified into three groups on the basis of sagittal T2-weighted MRI grade 0, none; grade 1, light (obscure); and grade 2, intense (bright). The neurological statuses were evaluated according to the Japanese Orthopaedic Association (JOA) scorostoperatively in 48 patients (48%) and were associated with surgical outcomes.<br /><br /> The use of telemedicine (TM) has long been available, but recent restrictions to hospitals due to the coronavirus disease 2019 (COVID-19) pandemic have accelerated the global implementation of TM. However, evidence on the effectiveness of this technology for the care of spine surgery patients is limited. In this systematic review the authors aimed to examine the current utilization of TM for spine surgery.<br /><br /> Using PubMed, Scopus, and the Cochrane Library, the authors performed a systematic review of the literature focused on the themes of telemedicine and spine surgery. Included in the search were randomized controlled trials, cohort studies, and case-controlled studies. Two independent reviewers conducted the study appraisal, data abstraction, and quality assessments of the studies.<br /><br /> Out of 1463 references from the initial search results, 12 studies met the inclusion criteria. The majority of TM interventions focused on improving perioperative patient communication and patient education by using mobile phone apps, online surveys, or online materials for consent. [https://www.selleckchem.com/products/bismuth-subnitrate.html Bismuth subnitrate purchase] The studies reported the feasibility of the use of TM for perioperative care and positive user experiences from the patients.<br /><br /> The current increase in TM adoption due to the COVID-19 crisis presents an opportunity to further develop and validate this technology. Early evidence in the literature supports the use of TM as an adjunct to traditional in-person clinical encounters for certain perioperative tasks such as supplemental patient education and postoperative surveys.<br /><br />The current increase in TM adoption due to the COVID-19 crisis presents an opportunity to further develop and validate this technology. Early evidence in the literature supports the use of TM as an adjunct to traditional in-person clinical encounters for certain perioperative tasks such as supplemental patient education and postoperative surveys.<br /><br /> The aim of this study was to investigate whether fat infiltration of the lumbar multifidus (LM) muscle affects revision surgery rates for adjacent-segment degeneration (ASD) after L4-5 transforaminal lumbar interbody fusion (TLIF) for degenerative spondylolisthesis.<br /><br /> A total of 178 patients undergoing single-level L4-5 TLIF for spondylolisthesis (2006 to 2016) were retrospectively analyzed. Inclusion criteria were a minimum 2-year follow-up, preoperative MR images and radiographs, and single-level L4-5 TLIF for degenerative spondylolisthesis. Twenty-three patients underwent revision surgery for ASD during the follow-up. Another 23 patients without ASD were matched with the patients with ASD. Demographic data, Roussouly curvature type, and spinopelvic parameter data were collected. The fat infiltration of the LM muscle (L3, L4, and L5) was evaluated on preoperative MRI using the Goutallier classification system.<br /><br /> A total of 46 patients were evaluated. There were no differences in age, sex, BMI, or spinopelvic parameters with regard to patients with and those without ASD (p &gt; 0.