Vincent N Nguyen, Jonathan Dallas, Benjamin S Hopkins, James Y H Yu, Robert C Rennert, Nadia A Atai, William J Mack, Jason Chu, Joseph N Carey, Jonathan J Russin
{"title":"Triple Vessel Extracranial-Intracranial Bypass and Distal Clip Occlusion for Giant, Partially Thrombosed Pediatric Fusiform Middle Cerebral Artery Aneurysm: 2-Dimensional Operative Video.","authors":"Vincent N Nguyen, Jonathan Dallas, Benjamin S Hopkins, James Y H Yu, Robert C Rennert, Nadia A Atai, William J Mack, Jason Chu, Joseph N Carey, Jonathan J Russin","doi":"10.1227/ons.0000000000001409","DOIUrl":"10.1227/ons.0000000000001409","url":null,"abstract":"","PeriodicalId":520730,"journal":{"name":"Operative neurosurgery (Hagerstown, Md.)","volume":" ","pages":"304-305"},"PeriodicalIF":0.0,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144586203","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":"Nerve Transfers for Elbow Reconstruction in Upper and Extended Upper-Type Brachial Plexus Injuries: A Case Series.","authors":"Emmanuel P Estrella, Tristram D Montales","doi":"10.1227/ons.0000000000000369","DOIUrl":"https://doi.org/10.1227/ons.0000000000000369","url":null,"abstract":"<p><strong>Background: </strong>Nerve transfers for elbow flexion in brachial plexus injuries have been used with increasing frequency because of the higher rate of success and acceptable morbidity. This is especially true in upper and extended upper-type brachial plexus injuries.</p><p><strong>Objective: </strong>To present the clinical outcomes of nerve transfers for elbow flexion in patients with upper and extended upper-type brachial plexus injuries.</p><p><strong>Methods: </strong>A retrospective cohort review was done on all patients with upper and extended upper-type brachial plexus injuries from 2006 to 2017, who underwent nerve transfers for the restoration of elbow flexion. Outcome variables include Filipino version of the disability of the arm, shoulder, and hand (FIL-DASH) score, elbow flexion strength and range of motion, and pain. All statistical significance was set at P < .05.</p><p><strong>Results: </strong>Fifty-six patients with nerve transfers to restore elbow flexion were included. There was a significant improvement in FIL-DASH scores in 28 patients after the nerve transfer procedure. Patients with C56 nerve root injuries and those with more than 2 years' follow-up have a higher percentage of regaining ≥M4 elbow flexion strength. Those with double nerve transfers had a higher percentage of ≥M4 elbow flexion strength, greater range of elbow flexion, and better FIL-DASH scores compared with single nerve transfers, but this did not reach statistical significance.</p><p><strong>Conclusion: </strong>Nerve transfer procedures improve FIL-DASH scores in upper and upper-type brachial plexus injuries. After nerve transfer, stronger elbow flexion can be expected in patients with C56 injuries, and those with longer follow-up.</p>","PeriodicalId":520730,"journal":{"name":"Operative neurosurgery (Hagerstown, Md.)","volume":" ","pages":"367-373"},"PeriodicalIF":2.3,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33502880","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}
Aria M Jamshidi, Joel R Martin, Onur C Kutlu, Michael Y Wang
{"title":"Diaphragmatic Hernia With Incarcerated Spleen as a Complication After Lateral Anterior Column Realignment.","authors":"Aria M Jamshidi, Joel R Martin, Onur C Kutlu, Michael Y Wang","doi":"10.1227/ons.0000000000000371","DOIUrl":"https://doi.org/10.1227/ons.0000000000000371","url":null,"abstract":"<p><strong>Background: </strong>The creation of sagittal balance of the spine is critical in the treatment adult spinal deformity. Anterior column release (ACR) has gained traction as a minimally invasive alternative to pedicle subtraction osteotomy. By releasing the anterior longitudinal ligament, the anterior column can be lengthened and physiologic lordosis restored. Risks such as transient psoas weakness and thigh numbness have been well documented in the literature; however, diaphragmatic hernia has never been reported.</p><p><strong>Objective: </strong>To highlight the difficulties encountered in diagnosing, managing, and treating iatrogenic diaphragmatic hernia in the setting of ACR and stress the relevant retropleural, retroperitoneal, and diaphragmatic structures during the surgical approach.</p><p><strong>Methods: </strong>In this technical note, we discuss the relevant anatomy in a direct lateral approach to the thoracolumbar junction and the management of an iatrogenic diaphragmatic hernia, which occurred in a patient who underwent a L1 ACR.</p><p><strong>Results: </strong>Three months after surgery, our patient was assessed in clinic and endorsed significant improvements in her pain and mobility. Her 3-month postoperative scoliosis x-rays demonstrated a significant improvement in her sagittal alignment, and she experienced no further negative sequelae from the iatrogenic hernia.</p><p><strong>Conclusion: </strong>Iatrogenic diaphragmatic hernia with an intrathoracic spleen after direct lateral ACR is a risk spine surgeons should be aware of and address promptly.</p>","PeriodicalId":520730,"journal":{"name":"Operative neurosurgery (Hagerstown, Md.)","volume":" ","pages":"389-395"},"PeriodicalIF":2.3,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33503611","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}
Muhammet Enes Gurses, Abuzer Gungor, Serdar Rahmanov, Elif Gökalp, Sahin Hanalioglu, Mustafa Berker, Aaron A Cohen-Gadol, Uğur Türe
{"title":"Three-Dimensional Modeling and Augmented Reality and Virtual Reality Simulation of Fiber Dissection of the Cerebellum and Brainstem.","authors":"Muhammet Enes Gurses, Abuzer Gungor, Serdar Rahmanov, Elif Gökalp, Sahin Hanalioglu, Mustafa Berker, Aaron A Cohen-Gadol, Uğur Türe","doi":"10.1227/ons.0000000000000358","DOIUrl":"https://doi.org/10.1227/ons.0000000000000358","url":null,"abstract":"<p><strong>Background: </strong>Surgeons must understand the complex anatomy of the cerebellum and brainstem and their 3-dimensional (3D) relationships with each other for surgery to be successful. To the best of our knowledge, there have been no fiber dissection studies combined with 3D models, augmented reality (AR), and virtual reality (VR) of the structure of the cerebellum and brainstem. In this study, we created freely accessible AR and VR simulations and 3D models of the cerebellum and brainstem.</p><p><strong>Objective: </strong>To create 3D models and AR and VR simulations of cadaveric dissections of the human cerebellum and brainstem and to examine the 3D relationships of these structures.</p><p><strong>Methods: </strong>Ten cadaveric cerebellum and brainstem specimens were prepared in accordance with the Klingler's method. The cerebellum and brainstem were dissected under the operating microscope, and 2-dimensional and 3D images were captured at every stage. With a photogrammetry tool (Qlone, EyeCue Vision Technologies, Ltd.), AR and VR simulations and 3D models were created by combining several 2-dimensional pictures.</p><p><strong>Results: </strong>For the first time reported in the literature, high-resolution, easily accessible, free 3D models and AR and VR simulations of cerebellum and brainstem dissections were created.</p><p><strong>Conclusion: </strong>Fiber dissection of the cerebellum-brainstem complex and 3D models with AR and VR simulations are a useful addition to the goal of training neurosurgeons worldwide.</p>","PeriodicalId":520730,"journal":{"name":"Operative neurosurgery (Hagerstown, Md.)","volume":" ","pages":"345-354"},"PeriodicalIF":2.3,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33503612","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}
Hani Chanbour, Jeffrey W Chen, Michael C Dewan, Scott L Zuckerman
{"title":"Commentary: Dura Management Strategies in the Surgical Treatment of Adult Chiari Type I Malformation: A Retrospective, Multicenter, Population-Based Parallel Cohort Case Series.","authors":"Hani Chanbour, Jeffrey W Chen, Michael C Dewan, Scott L Zuckerman","doi":"10.1227/ons.0000000000000416","DOIUrl":"https://doi.org/10.1227/ons.0000000000000416","url":null,"abstract":"","PeriodicalId":520730,"journal":{"name":"Operative neurosurgery (Hagerstown, Md.)","volume":" ","pages":"e342-e343"},"PeriodicalIF":2.3,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40364066","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}
Sebastian Siller, Laura Pannenbaecker, Joerg-Christian Tonn, Stefan Zausinger
{"title":"Unilateral Approaches for Posterior Spinal Canal Decompression in Cervical Spondylotic Myelopathy-An Evaluation of Conceptual Feasibility.","authors":"Sebastian Siller, Laura Pannenbaecker, Joerg-Christian Tonn, Stefan Zausinger","doi":"10.1227/ons.0000000000000364","DOIUrl":"https://doi.org/10.1227/ons.0000000000000364","url":null,"abstract":"<p><strong>Background: </strong>Patients with cervical spondylotic myelopathy (CSM) can be treated with posterior approaches for spinal canal decompression.</p><p><strong>Objective: </strong>We compared the patients' outcome after 2 different unilateral and a bilateral posterior approach for decompression to elucidate feasibility and potential procedure-related differences.</p><p><strong>Methods: </strong>Medical records of 98 patients with CSM undergoing posterior decompression between 2012 and 2018 were assessed. Patients were divided into 3 groups: (1) unilateral interlaminar fenestration with over-the-top \"undercutting\" (laminotomy) for compression limited to a ligamentum flavum hypertrophy, (2) unilateral hemilaminectomy for lateralized compression with a combination of ligamentous hypertrophy and osseus stenosis, and (3) laminectomy/laminoplasty for circular osseous-ligamentous spinal canal narrowing.</p><p><strong>Results: </strong>The mean age was 73 years (m:f = 1.4:1), and most frequent symptoms (mean duration: 15 months) were ataxia (69%) and sensory changes (57%). Main location of stenoses (median Naganawa Score = 3; mean anteroposterior spinal canal diameter = 7.7 ± 2.2 mm) was C3 to C6. Thirty-one percent of the patients were assigned for a laminotomy procedure, 20% for a hemilaminectomy, and 49% for a laminectomy/laminoplasty. There were no significant differences of patients' characteristics, blood loss, and operation time between the 3 groups. Independent from the mode of surgery, the spinal canal was significantly widened (median Naganawa Score = 0; mean anteroposterior diameter = 11.4 ± 3.6 mm) and myelopathy (mJOA Score) improved ( P < .001); a higher body mass index was significantly correlated with a worse mJOA improvement (r = 0.293/ P = .003). Quality of life (Short-Form 36v2 Health Survey/Neck Disability Index) and reduction of the neck pain level were similar in the 3 groups at last follow-up (mean: 28 months).</p><p><strong>Conclusion: </strong>To minimize patients' periprocedural burden in CSM with dorsal compression, individual tailoring of the posterior approach according to the underlying compressive pathology achieves sufficient decompression and comparable long-term results.</p>","PeriodicalId":520730,"journal":{"name":"Operative neurosurgery (Hagerstown, Md.)","volume":" ","pages":"431-438"},"PeriodicalIF":2.3,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33502884","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":"Commentary: Endoscope-Assisted Microsurgical Resection of a Large Petroclival Meningioma Using a Retrosigmoid Approach: 2-Dimensional Operative Video.","authors":"Hailiang Tang, Feng Xu","doi":"10.1227/ons.0000000000000398","DOIUrl":"https://doi.org/10.1227/ons.0000000000000398","url":null,"abstract":"","PeriodicalId":520730,"journal":{"name":"Operative neurosurgery (Hagerstown, Md.)","volume":" ","pages":"e326-e327"},"PeriodicalIF":2.3,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33504513","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}
Amit R Persad, Syed Uzair Ahmed, Rosalie Mercure-Cyr, Karen Waterhouse, Aleksander M Vitali
{"title":"Use of Antibacterial Envelopes for Prevention of Infection in Neuromodulation Implantable Pulse Generators.","authors":"Amit R Persad, Syed Uzair Ahmed, Rosalie Mercure-Cyr, Karen Waterhouse, Aleksander M Vitali","doi":"10.1227/ons.0000000000000367","DOIUrl":"https://doi.org/10.1227/ons.0000000000000367","url":null,"abstract":"<p><strong>Background: </strong>Neuromodulation unit placement carries a historic infection rate as high as 12%. Treatment of such requires surgical removal and a long course of systemic antibiotics. Antibiotic-impregnated envelopes have been effective in preventing infection in implantable cardiac devices. At our center, 1 surgeon uses these envelopes with all implanted neuromodulation units.</p><p><strong>Objective: </strong>To assess the efficacy of antibacterial envelopes in prevention of infection in neuromodulation device placement.</p><p><strong>Methods: </strong>We conducted a retrospective cohort study of consecutive implantable pulse generator (IPG) unit implantation with an antibacterial envelope at a single center between October 2014 and December 2019. We collected demographic data, including postoperative infections, reoperations, and complications, associated with the IPGs. This cohort was then compared with a historical cohort of consecutive patients undergoing surgery before envelope usage (October 2007-April 2014).</p><p><strong>Results: </strong>In the pre-envelope cohort of 151 IPGs placed in 116 patients, there were 18 culture-confirmed infections (11.9%). In the antibacterial envelope cohort of 233 IPGs placed in 185 patients, there were 5 culture-confirmed infections (2.1%). The absolute risk reduction of the antibacterial envelope was 9.85% (95% CI 4.3%-15.4%, P < .01). The number needed to treat was 10.1 (95% CI 6.5-23.1, P < .01) envelopes to prevent 1 IPG infection.</p><p><strong>Conclusion: </strong>We saw a reduced rate of infections in the antibacterial envelope cohort. Although this is likely multifactorial, our results suggest a benefit of antibacterial envelopes on infection after neuromodulation surgery.</p>","PeriodicalId":520730,"journal":{"name":"Operative neurosurgery (Hagerstown, Md.)","volume":" ","pages":"413-419"},"PeriodicalIF":2.3,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33503613","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}
Suraj Sulhan, Saeed S Sadrameli, Sean Barber, Paul Holman, Gavin Britz, Meng Huang
{"title":"Fractured Lumbar Drain Catheter Retrieval Using an Endoscopic Transforaminal Approach to the Lumbar Spine.","authors":"Suraj Sulhan, Saeed S Sadrameli, Sean Barber, Paul Holman, Gavin Britz, Meng Huang","doi":"10.1227/ons.0000000000000378","DOIUrl":"https://doi.org/10.1227/ons.0000000000000378","url":null,"abstract":"<p><strong>Background and importance: </strong>Lumbar drain placement is a common neurosurgical procedure, with several surgical and medical indications extending even beyond the specialty. One complication of placement is a fractured catheter fragment. In some circumstances, catheter retrieval is necessary which is classically performed through an open approach. Here, we present the only reported case of a retained lumbar drain catheter which was retrieved using a transforaminal endoscopic approach to the lumbar spine.</p><p><strong>Clinical presentation: </strong>This is a 39 year-old woman who underwent an elective craniotomy with planned perioperative lumbar drain placement for cerebrospinal fluid diversion using a 14-gauge Tuohy needle. Placement was noted to be technically challenging, and during the final attempt on removal of the system, it was noted that the distal end of the catheter had been sheared and retained in the thecal sac. Postoperatively a computed tomography scan of the lumbar spine was obtained showing the catheter fragment which entered the thecal sac dorsally at the L3-4 level but penetrated the ventral dura traveling in the epidural space caudally and terminating in the left lateral recess of L4-5. Given its presumed epidural location near the left L4-5 lateral recess and foramen, the decision was made to attempt a left transforaminal endoscopic approach for catheter retrieval before resorting to a standard open surgery.</p><p><strong>Conclusion: </strong>As minimally invasive spine techniques for spine surgery continue to evolve, we have highlighted the versatility of the endoscope in spine surgery as it was implemented in our case, allowing for reduced perioperative morbidity associated with retained spinal catheter retrieval.</p>","PeriodicalId":520730,"journal":{"name":"Operative neurosurgery (Hagerstown, Md.)","volume":" ","pages":"e331-e334"},"PeriodicalIF":2.3,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33502882","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":"Letter: Craniometrics and Ventricular Access: A Review of Kocher's, Kaufman's, Paine's, Menovksy's, Tubbs', Keen's, Frazier's, Dandy's, and Sanchez's Points.","authors":"Nelson A Picard","doi":"10.1227/ons.0000000000000411","DOIUrl":"https://doi.org/10.1227/ons.0000000000000411","url":null,"abstract":"To the Editor: In their recent article, “Craniometrics and Ventricular Access: A Review of Kocher’s, Kaufman’s, Paine’s, Menovksy’s, Tubbs’, Keen’s, Frazier’s, Dandy’s, and Sanchez’s Points” Morone et al1 provide an excellent overview of the various methods of obtaining ventricular access based on different cranial starting points and drain trajectories. As the authors expertly illustrate, Kocher’s point is the most common starting cranial location and is used in the vast majority of cases, especially for emergency external ventricular drain (EVD) placement. We agree with the authors that the other cranial points of access are most commonly used intraoperatively when the entry point is limited by the exposed surgical field. The authors should be commended for their","PeriodicalId":520730,"journal":{"name":"Operative neurosurgery (Hagerstown, Md.)","volume":" ","pages":"e347"},"PeriodicalIF":2.3,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33503210","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}