{"title":"Exoscope for revision of right lateral femoral cutaneous nerve decompression","authors":"Matthew C. Findlay, Spencer Twitchell, M. Mahan","doi":"10.3171/2023.10.focvid23162","DOIUrl":"https://doi.org/10.3171/2023.10.focvid23162","url":null,"abstract":"The exoscope serves as a valuable addition or alternative to traditional microscope systems in surgery, offering 3D visualization and magnification with enhanced maneuverability. In lateral femoral cutaneous nerve decompression for meralgia paresthetica, the exoscope is effective in identifying strictures of neural compression and minimizing iatrogenic nerve damage that may lead to improved pain management outcomes for patients. In this report, the specific case presented showcases how the exoscope aided in surgical decompression of the lateral femoral cutaneous nerve of a patient with refractory meralgia paresthetica with remote previous decompression and resultant scarring. The video can be found here: https://stream.cadmore.media/r10.3171/2023.10.FOCVID23162","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"31 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139127108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Sufianov, I. A. Gaysin, Iurii A. Iakimov, Albert Sufianov
{"title":"Exoscopic removal of the fourth ventricle choroid plexus papilloma with use of a midline suboccipital osteoplastic craniotomy","authors":"R. Sufianov, I. A. Gaysin, Iurii A. Iakimov, Albert Sufianov","doi":"10.3171/2023.10.focvid23106","DOIUrl":"https://doi.org/10.3171/2023.10.focvid23106","url":null,"abstract":"Choroid plexus papillomas are relatively rare vascular tumors. In this video, the authors present a pediatric patient who underwent exoscopic removal of the fourth ventricle choroid plexus papilloma with the use of a midline suboccipital osteoplastic craniotomy. The exoscope in the fourth ventricle lesion helps to improve visualization in all directions, with the surgeon being able to maintain a comfortable position throughout the procedure. In addition, the midline suboccipital osteoplastic craniotomy helps to reduce the potential risks of complications, in particular, CSF leak and craniovertebral junction instability. The video can be found here: https://stream.cadmore.media/r10.3171/2023.10.FOCVID23106","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"52 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139128876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Constantinos G. Hadjipanayis, L. Infinger, M. Lehecka, Gustavo Pradilla, Gabriel Zada
{"title":"Introduction. Use of the exoscope in neurosurgery","authors":"Constantinos G. Hadjipanayis, L. Infinger, M. Lehecka, Gustavo Pradilla, Gabriel Zada","doi":"10.3171/2023.10.focvid23188","DOIUrl":"https://doi.org/10.3171/2023.10.focvid23188","url":null,"abstract":"","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"24 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139129288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Exoscopic resection of giant olfactory groove meningioma","authors":"Francesco Calvanese, A. M. Auricchio, M. Lehecka","doi":"10.3171/2023.10.focvid23125","DOIUrl":"https://doi.org/10.3171/2023.10.focvid23125","url":null,"abstract":"Olfactory groove meningiomas represent 8%–13% of all intracranial meningiomas. Gross-total resection for large (4–6 cm) and giant (> 6 cm) cases remains challenging due to their relationship with critical neurovascular structures and extensive frontal lobe edema. A variety of transcranial and endoscopic approaches have been described. This 2D operative video shows the use of a digital 3D exoscope in the removal of a giant olfactory groove meningioma through a lateral supraorbital approach in a 57-year-old woman with visual impairment and apathy. The exoscope provides a very good angulated view of the subfrontal area on both sides of the anterior cranial fossa even through a small craniotomy. The video can be found here: https://stream.cadmore.media/r10.3171/2023.10.FOCVID23125","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"125 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139128441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Minimally-invasive tubular resection of thoracolumbar intradural schwannoma.","authors":"Maya Harary, Diana Chang, Irene Say, Daniel C Lu","doi":"10.3171/2023.6.FOCVID2335","DOIUrl":"https://doi.org/10.3171/2023.6.FOCVID2335","url":null,"abstract":"<p><p>Minimally invasive surgical (MIS) approaches to the spine are increasingly adopted for intradural pathology. In this setting, they may especially be useful to minimize risk of CSF leakage due to the decreased disruption to paraspinal musculature and minimal dead space. Herein, the authors demonstrate their technique for the resection of an intradural thoracolumbar schwannoma in a 30-year-old woman via an MIS approach using a nonexpandable tubular retractor. Salient points include the use of bayonetted instruments and the technique for dural closure in a small corridor. Indications for this technique are discussed in the context of a series of patients with intradural extramedullary lesions.</p>","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"9 2","pages":"V19"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10580752/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49685905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Robot-assisted T12 pediculectomy and resection of a ventral thoracic meningioma.","authors":"Mahmudur Rahman, Huy Truong, Aditya Vedantam","doi":"10.3171/2023.7.FOCVID2372","DOIUrl":"https://doi.org/10.3171/2023.7.FOCVID2372","url":null,"abstract":"<p><p>Spinal meningiomas represent 25%-45% of intradural spinal tumors and are commonly seen in the thoracic spine. Ventral midline spinal meningiomas in the thoracic spine are challenging lesions to resect given their location in relation to the spinal cord. Resection for symptomatic or growing lesions requires adequate bone removal to limit retraction of the spinal cord. Surgical adjuncts such as intraoperative navigation, robotics, and ultrasound can improve the efficiency of and safety for resection of these lesions. The authors present a case of a complete resection of a ventral thoracic meningioma using a T12 transpedicular approach with robot-assisted navigated pediculectomy and intraoperative ultrasonography.</p>","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"9 2","pages":"V18"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10580736/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49685910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matheus A Bannach, Mateus N F Fernandes, Rodrigo Cavalcante
{"title":"Cervical ependymoma en bloc resection.","authors":"Matheus A Bannach, Mateus N F Fernandes, Rodrigo Cavalcante","doi":"10.3171/2023.6.FOCVID2390","DOIUrl":"https://doi.org/10.3171/2023.6.FOCVID2390","url":null,"abstract":"<p><p>A 58-year-old male was admitted to the authors' department due to cervicothoracic pain and disequilibrium. Physical examination evidenced sensory and motor deficits in the lower limbs. MRI evidenced an expansive intramedullary lesion compatible with ependymoma. The nuances of this surgical access and the management of intradural tumors are discussed.</p>","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"9 2","pages":"V3"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10580749/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49685900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Resection of a large multisegmental filum terminale ependymoma through a multisegmental hemilaminectomy.","authors":"Paawan Bahadur Bhandari","doi":"10.3171/2023.6.FOCVID2349","DOIUrl":"https://doi.org/10.3171/2023.6.FOCVID2349","url":null,"abstract":"<p><p>This video demonstrates a gross-total resection of a multisegmental intradural extramedullary tumor using only multisegmental hemilaminectomy. The patient is a 21-year-old woman presenting with only backache. MRI of the lumbar spine demonstrates a large multisegmental heterogeneously enhancing intradural extramedullary tumor extending down from the eleventh dorsal vertebrae down to the fifth lumbar vertebrae. The surgical video demonstrates the technique of multisegmental hemilaminectomy and microsurgical resection of the tumor without posterior spinal instrumentation. Postoperatively, the patient had no neurological deficit and was discharged on postoperative day 5. Three-month postoperative MRI shows no residual disease or spinal deformity.</p>","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"9 2","pages":"V20"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10580747/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49685907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Joshua Vignolles-Jeong, Maxwell D Gruber, Vikas Munjal, Santino Cua, Justin Baum, Vikram B Chakravarthy
{"title":"Resection of intradural intramedullary subependymoma of the cervicothoracic spine: 2-dimensional operative video.","authors":"Joshua Vignolles-Jeong, Maxwell D Gruber, Vikas Munjal, Santino Cua, Justin Baum, Vikram B Chakravarthy","doi":"10.3171/2023.6.FOCVID2381","DOIUrl":"https://doi.org/10.3171/2023.6.FOCVID2381","url":null,"abstract":"<p><p>This video presents the case of a 44-year-old male with a 2-year history of pain in the left upper extremity that had worsened over the course of the last 6 months with associated weakened grip strength and had extended into his right arm. T2-weighted sagittal and axial MRI demonstrated an expansive nonenhancing solid intramedullary lesion extending from C5 to T1. The patient underwent a C5-T1 laminectomy and laminoplasty with near-complete resection of the intradural intramedullary subependymoma. At 3 months' follow-up, he reported doing well and had experienced significant improvement in motor strength with ongoing therapies.</p>","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"9 2","pages":"V6"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10580741/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49685909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maxwell T Laws, Martin Arhin, Leonel Ampie, Prashant Chittiboina
{"title":"Dorsal cervical approach for recurrent intradural anaplastic ependymoma.","authors":"Maxwell T Laws, Martin Arhin, Leonel Ampie, Prashant Chittiboina","doi":"10.3171/2023.6.FOCVID2396","DOIUrl":"https://doi.org/10.3171/2023.6.FOCVID2396","url":null,"abstract":"<p><p>The video demonstrates an operative approach to a recurrent cervical anaplastic ependymoma. MYCN-amplified anaplastic ependymomas are locally aggressive, recurrent, and have a high risk of iatrogenic injury. In this case, the patient presented with local, aggressive tumor expansion, arachnoid adhesions, and pial invasion ventral to the spinal cord. Subcapsular decompression minimized cord retraction from a dorsal approach. Removal of the tumor capsule was guided by bipolar stimulation paired with neuromonitoring. Local gross-total resection was achieved, and the patient had a postoperative improvement in his neurological deficits and myelopathy.</p>","PeriodicalId":74299,"journal":{"name":"Neurosurgical focus: Video","volume":"9 2","pages":"V2"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10580737/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49685901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}