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Guvenc Y, Topal B, Verimli U, Biyikli E, Akdeniz E, Ziyal İ. Posterolateral Paramass Approach to Lesions Located at the Anterior C1-2 Level: A Cadaver Study. World Neurosurg 2024; 186:e566-e576. [PMID: 38583564 DOI: 10.1016/j.wneu.2024.03.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 03/30/2024] [Indexed: 04/09/2024]
Abstract
OBJECTIVE A novel posteriolateral surgical approach is described that will provide safe access to intradural and extradural lesions located in the anterior part of the spinal cord (SC) at the C1-2 level and to the odontoid in single session. METHODS A total of five cadavers and two dry C1 vertebrae were used in this study. The study involved obtaining computed tomography magnetic resonance imaging scans and magnetic resonance imaging of all cadaver groups before and after the procedures. Group 1: Control; Group 2: Unilateral C1 posterior arch was removed, the inferomedial part of C1 lateral mass was removed, and access the anterior and lateral aspects of the SC. Group 3: In addition, odontoid was removed, Group 4: In addition, unilateral C1- C2 screw was placed. Group 5: In addition, bilateral C1-C2 screw was placed. RESULTS The median distance from the midpoint of C1 posterior tubercle to vertebral groove which was removed in groups is 21.4 ± 2.88 mm. The average width of C1 lateral mass was 13.4±2.4 mm. After the lateral mass was drilled, its width decreased to 10,2 mm.This area was sufficient to open a surgical corridor and reach the anterior of SC and odontoid. After the procedure, no instability was found in group 2 without instrumentation on computed tomography and magnetic resonance imaging scans. CONCLUSIONS It is possible to access the anterior C1-C2 via a posterolateral paramass approach by drilling 20%-30% of the lateral mass, providing an open pathway for easy intervention in C1-C2 intradural lesions. It is also possible to perform odontoid resection using this approach.
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Affiliation(s)
- Yahya Guvenc
- Department of Neurosurgery, School of Medicine, Marmara University, Istanbul, Turkey; Neurological Sciences Institute, Marmara University, Istanbul, Turkey; Department of Neurological Sciences, Institute of Health Sciences, Marmara University, Istanbul, Turkey.
| | - Bahadır Topal
- Department of Neurosurgery, School of Medicine, Marmara University, Istanbul, Turkey
| | - Ural Verimli
- Department of Anatomy, School of Medicine, Marmara University, Istanbul, Turkey
| | - Erhan Biyikli
- Department of Radiology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Esra Akdeniz
- Department of Medical Education, Marmara University, Istanbul, Turkey
| | - İbrahim Ziyal
- Department of Neurosurgery, School of Medicine, Marmara University, Istanbul, Turkey
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Castillo AL, Meybodi AT, Liu JK. Jugular Foramen Tumors: Surgical Strategies and Representative Cases. Brain Sci 2024; 14:182. [PMID: 38391756 PMCID: PMC10886589 DOI: 10.3390/brainsci14020182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/07/2024] [Accepted: 02/15/2024] [Indexed: 02/24/2024] Open
Abstract
(1) Background: Jugular foramen tumors are complex lesions due to their relationship with critical neurovascular structures within the skull base. It is necessary to have a deep knowledge of the anatomy of the jugular foramen and its surroundings to understand each type of tumor growth pattern and how it is related to the surrounding neurovascular structures. This scope aims to provide a guide with the primary surgical approaches to the jugular foramen and familiarize the neurosurgeons with the anatomy of the region. (2) Methods and (3) Results: A comprehensive description of the surgical approaches to jugular foramen tumors is summarized and representative cases for each tumor type is showcased. (4) Conclusions: Each case should be carefully assessed to find the most suitable approach for the patient, allowing the surgeon to remove the tumor with minimal neurovascular damage. The combined transmastoid retro- and infralabyrinthine transjugular transcondylar transtubercular high cervical approach can be performed in a stepwise fashion for the resection of complex jugular foramen tumors.
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Affiliation(s)
- Andrea L Castillo
- Department of Neurological Surgery, New Jersey Medical School, Newark, NJ 07103, USA
- Department of Neurosurgery, Cooperman Barnabas Medical Center, RWJ Barnabas Health, Livingston, NJ 07039, USA
| | - Ali Tayebi Meybodi
- Department of Neurological Surgery, New Jersey Medical School, Newark, NJ 07103, USA
- Department of Neurosurgery, Cooperman Barnabas Medical Center, RWJ Barnabas Health, Livingston, NJ 07039, USA
| | - James K Liu
- Department of Neurosurgery, Cooperman Barnabas Medical Center, RWJ Barnabas Health, Livingston, NJ 07039, USA
- Skull Base Institute of New Jersey, Neurosurgeons of New Jersey, Livingston, NJ 07039, USA
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3
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Abramov I, Labib MA, Altshuler D, Houlihan LM, Gonzalez-Romo NI, Luther E, Ivan ME, Lawton MT, Morcos JJ, Preul MC. Step-by-Step Dissection of the Extreme Lateral Transodontoid Approach to the Anterior Craniovertebral Junction: Surgical Anatomy and Technical Nuances. World Neurosurg 2024; 182:e5-e15. [PMID: 37925146 DOI: 10.1016/j.wneu.2023.10.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/06/2023]
Abstract
BACKGROUND Multicompartmental lesions of the anterior craniovertebral junction require aggressive management. However, the lesions can be difficult to reach, and the surgical procedure is difficult to understand. The aim of this study was to create a procedural, stepwise microsurgical educational resource for junior trainees to learn the surgical anatomy of the extreme lateral transodontoid approach (ELTOA). METHODS Ten formalin-fixed, latex-injected cadaveric heads were dissected under an operative microscope. Dissections were performed under the supervision of a skull base fellowship-trained neurosurgeon who has advanced skull base experience. Key steps of the procedure were documented with a professional camera and a high-definition video system. A relevant clinical case example was reviewed to highlight the principles of the selected approach and its application. The clinical case example also describes a rare complication: a pseudoaneurysm of the vertebral artery. RESULTS Key steps of the ELTOA include patient positioning, skin incision, superficial and deep muscle dissection, vertebral artery dissection and transposition, craniotomy, clivus drilling, odontoidectomy, and final extradural and intradural exposure. CONCLUSIONS The ELTOA is a challenging approach, but it allows for significant access to the anterior craniovertebral junction, which increases the likelihood of gross total lesion resection. Given the complexity of the approach, substantial training in the dissection laboratory is required to develop the necessary anatomic knowledge and to minimize approach-related morbidity.
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Affiliation(s)
- Irakliy Abramov
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Mohamed A Labib
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - David Altshuler
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Lena Mary Houlihan
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Nicolas I Gonzalez-Romo
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Evan Luther
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Michael T Lawton
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Jacques J Morcos
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Mark C Preul
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA.
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Sriamornrattanakul K, Akharathammachote N, Chonhenchob A, Mongkolratnan A, Niljianskul N, Phoominaonin IS, Ariyaprakai C. Far-lateral approach without C1 laminectomy for microsurgical treatment of vertebral artery and proximal posterior inferior cerebellar artery aneurysms: Experience from 48 patients. World Neurosurg X 2023; 19:100216. [PMID: 37251244 PMCID: PMC10209739 DOI: 10.1016/j.wnsx.2023.100216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 05/10/2023] [Indexed: 05/31/2023] Open
Abstract
Background In the endovascular era, most of vertebral artery (VA) and posterior inferior cerebellar artery (PICA) aneurysms were mainly treated with endovascular procedures. This study aimed to demonstrate the microsurgical treatment via the far-lateral approach without C1 laminectomy and its clinical outcomes. Methods Forty-eight patients with VA and proximal PICA aneurysms treated by microsurgery through the far-lateral approach without C1 laminectomy, between January 2016 and June 2021, were retrospectively evaluated. Results Most patients (87.5%) presented with subarachnoid hemorrhage. Grading at presentation was poor in 41.7%. The rates of VA dissecting aneurysms, saccular aneurysms of the VA-PICA junction, and true PICA saccular aneurysms were 54.2, 18.7, and 14.6%, respectively. All aneurysms were located above the lower margin of the foramen magnum. The far-lateral approach without C1 laminectomy was successfully used in all patients without residual aneurysms. Various surgical strategies were applied depending on the characteristics of the aneurysm. Good outcomes 3 months postoperatively were achieved in 77.1% and 89.3% for the overall and good-grade groups, respectively. Conclusions Microsurgery is a safe and effective treatment of VA and proximal PICA aneurysms. Moreover, the far-lateral approach without C1 laminectomy was adequate and effective for aneurysms located above the lower border of the foramen magnum.
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Fiani B, Jarrah R, Shields J, Durrani S, Panico N, Mualem W, Nathani KR, Pasko K. A Comprehensive Overview of Pediatric Neoplasms at the Craniocervical Junction: Meningiomas, Schwannomas, and Chordomas. Cureus 2022; 14:e31083. [DOI: 10.7759/cureus.31083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/04/2022] [Indexed: 11/06/2022] Open
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Wang B, Li Q, Sun Y, Tong X. Surgical Strategy for Skull Base Chordomas : Transnasal Midline Approach or Transcranial Lateral Approach. J Korean Neurosurg Soc 2022; 65:457-468. [PMID: 35286801 PMCID: PMC9082126 DOI: 10.3340/jkns.2021.0187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/24/2021] [Accepted: 09/02/2021] [Indexed: 12/04/2022] Open
Abstract
OBJECTIVE The clinical management paradigm of skull base chordomas is still challenging. Surgical resection plays an important role of affecting the prognosis. Endonasal endoscopic approach (EEA) has gradually become the preferred surgical approach in most cases, but traditional transcranial surgery cannot be completely replaced. This study presents a comparison of the results of the two surgical strategies and a summary of the treatment algorithms for skull base chordomas. METHODS We retrospectively analyzed the surgical outcomes and follow-up data of 48 patients with skull base chordomas diagnosed pathologically who received transnasal midline approaches (TMA) and transcranial lateral approaches (TLA) from 2010 to 2020. RESULTS Among the 48 patients, 36 cases were adopted TMA and 12 cases were performed with TLA. In terms of gross total resection (GTR) rate, 27.8% in TMA and 16.7% in TLA and with EEA alone it was increased to 38.9%, while 29.7% in primary surgery. In TMA, the cerebrospinal fluid (CSF) leak remains the most common complication (13 cases, 36.1%), other main complications included death, cranial nerve palsy, hypopituitarism, all the comparisons were no statistical significance. The Karnofsky Performance Scale scores in TMA were all better than those in TLA at different time, and the overall survival (OS) and recurrence free survival/progression free survival was just the reverse. CONCLUSION The EEA for skull base chordomas resection has improved the GTR rate, but transcranial approach is still an alternative approach. It is necessary to select an appropriate surgical approach based on the location and the pattern of tumor growth in order to obtain the best surgical outcomes.
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Affiliation(s)
- Benlin Wang
- School of Medicine, Nankai University, Tianjin, China
| | - Qi Li
- School of Medicine, Nankai University, Tianjin, China
| | - Yang Sun
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Xiaoguang Tong
- School of Medicine, Nankai University, Tianjin, China
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin, China
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Varol E, Etli MU, Avcı F, Ramazanoğlu AF, Aydın SO, Yaltırık CK, Naderi S. Can Posterior Midline Approach Provide Adequate Exposure for All Craniovertebral Junction Tumors? World Neurosurg 2022; 161:e482-e487. [DOI: 10.1016/j.wneu.2022.02.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/10/2022] [Accepted: 02/11/2022] [Indexed: 11/29/2022]
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Bahşi İ, Adanır SS, Orhan M, Kervancıoğlu P, Büyükbeşe ZS, Beger O, Yalçın ED. Anatomical Evaluation of the Foramen Magnum on Cone-Beam Computed Tomography Images and Review of Literature. Cureus 2021; 13:e19385. [PMID: 34925987 PMCID: PMC8655366 DOI: 10.7759/cureus.19385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2021] [Indexed: 11/05/2022] Open
Abstract
Background and objective The morphology and morphometry of the foramen magnum (FM), which provides a passageway to vital neurological structures that relay information to and from the brain and spinal cord, are significant for many surgical approaches and applications. It was aimed to investigate the morphometric and morphological features of the FM on the cone-beam computed tomography (CBCT) images and to review the literature in detail. Methods CBCT images of 400 individuals (200 males, 200 females, aged between 18 and 65) were evaluated by Planmeca Romexis Viewer. The length, width, perimeter, and area of the FM were examined and samples were classified according to shape. Also, the FM index (FMI) was calculated. Results The mean values of the length, width, and perimeter were found to be 36.75±2.50 mm, 32.55±2.93 mm, and 108.35±7.50 mm, respectively. The area of FM was found to be 941.81±128.26 mm2, 946.83±127.39 mm2, and 895.76±123.50 mm2 with Planmeca Romexis Viewer, Radinsky formula, and Teixeira formula, respectively. All parameters were significantly larger in males than females. There was no correlation between age and these parameters. Also, seven shapes were determined for FM, and the most common shape was oval. FM index was evaluated according to the Martin and Saller classification. It was found that 16.5% of the cases belonged to the narrow, 16% belonged to the medium, and 67.5% to the large FM index. There was no correlation between age and FM index. Conclusion Morphometric and morphological features of the FM located in the craniovertebral junction (CVJ), which is a highly complex area, are variable. Surgical procedures and approaches in this region are essential due to the high mortality rate. For this reason, anatomical structures in these regions should be well known before surgery. The quantitative data presented in this study, which made a detailed literature comparison, may assist in surgical procedures around the FM and the planning of these procedures.
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Affiliation(s)
- İlhan Bahşi
- Department of Anatomy, Gaziantep University, Gaziantep, TUR
| | | | - Mustafa Orhan
- Department of Anatomy, Gaziantep University, Gaziantep, TUR
| | | | | | - Orhan Beger
- Department of Anatomy, Gaziantep University, Gaziantep, TUR
| | - Eda Didem Yalçın
- Department of Dentomaxillofacial Radiology, Dokuz Eylül University, İzmir, TUR
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Kina H, Erginoglu U, Hanalioglu S, Ozaydin B, Baskaya MK. Ovoid Foramen Magnum Shape is Associated with Increased Complications and Decreased Extent of Resection for Anterolateral Foramen Magnum Meningiomas. J Neurol Surg B Skull Base 2021; 82:682-688. [PMID: 34745837 DOI: 10.1055/s-0040-1715559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 06/11/2020] [Indexed: 10/23/2022] Open
Abstract
Background Antero-laterally located meningiomas of the foramen magnum (FM) pose significant surgical resection challenges. The effect of FM shape on surgical resection of FM meningiomas has not been previously studied. The present study investigates how FM shape effects the extent of tumor resection and complication rates in antero-lateral FM meningiomas. Materials and Methods This retrospective study included 16 consecutive patients with antero-lateral FM meningiomas operated on by a single surgeon. FMs were classified as ovoid ( n = 8) and nonovoid ( n = 8) using radiographic evaluation. Results Sixteen patients were examined: seven males and nine females (mean age of 58.5, and range of 29 to 81 years). Gross total resection was achieved in 81% of patients, with tumor encased vertebral arteries in 44%. Patient characteristics were similar including age, sex, preoperative tumor volume, relationship of vertebral artery with tumor, preoperative Karnofsky performance score (KPS), symptom duration, and presence of lower cranial nerve symptoms. The ovoid FM group had lower volumetric extents of resection without statistical significance (93 ± 10 vs. 100 ± 0%, p = 0.069), more intraoperative blood loss (319 ± 75 vs. 219 ± 75 mL, p = 0.019), more complications per patient (1.9 ± 1.8 vs. 0.3 ± 0.4, p = 0.039), and poorer postoperative KPS (80 ± 21 vs. 96 ± 5, p = 0.007). Hypoglossal nerve palsy was more frequent in the ovoid FM group (38 vs. 13%). Conclusion This is the first study demonstrating that ovoid FMs may pose surgical challenges, poorer operative outcomes, and lower rates of extent of resection. Preoperative radiological investigation including morphometric FM measurement to determine if FMs are ovoid or nonovoid can improve surgical planning and complication avoidance.
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Affiliation(s)
- Hakan Kina
- Department of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States
| | - Ufuk Erginoglu
- Department of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States
| | - Sahin Hanalioglu
- Department of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States
| | - Burak Ozaydin
- Department of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States
| | - Mustafa K Baskaya
- Department of Neurological Surgery, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States
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Transcondylar Fossa Approach for Resection of Anterolateral Foramen Magnum Meningioma: 2-Dimensional Operative Video. World Neurosurg 2021; 154:91-92. [PMID: 34303002 DOI: 10.1016/j.wneu.2021.07.058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/12/2021] [Accepted: 07/13/2021] [Indexed: 11/23/2022]
Abstract
Among the posterolateral corridors to the ventral foramen magnum (FM), the transcondylar fossa (supracondylar transjugular tubercle) approach (TCFA) is indicated for lesions lying anteriorly to the dentate ligament and above the jugular foramen and hypoglossal canal.1-13 It involves the drilling of the condylar fossa, namely the exocranial surface of the jugular tubercle. Despite the anatomic variability of the condyle and posterior condylar emissary vein,14,15 they are important landmarks for the TCFA. The extradural jugular tuberculectomy has no risk of iatrogenic mechanical instability compared with the transcondylar approach. This 2-dimensional operative video (Video 1) aims to show the key technical aspects of the TCFA through the case description of an anterolateral FM meningioma. A 35-year-old male patient with a left anterolateral FM meningioma underwent TCFA in a semisitting position. Drilling of the condylar fossa led to an extradural resection of the jugular tubercle. Posterior condylar emissary veins connecting the sigmoid sinus/jugular bulb with the vertebral venous plexus marked the lateral limit of the approach. Through a suprahypoglossal working corridor, the meningioma was debulked and dissected. Postoperative magnetic resonance imaging confirmed complete resection of the tumor, and the patient was discharged neurologically intact on the third postoperative day. TCFA is a valuable technical option for selected anterolateral FM meningiomas. The perfect knowledge and intraoperative use of specific anatomic landmarks are critical to safely perform the TCFA while maximizing the exposure of the surgical target and decreasing the risk of postoperative mechanical instability of the craniovertebral junction.
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Fatima N, Shin JH, Curry WT, Chang SD, Meola A. Microsurgical resection of foramen magnum meningioma: multi-institutional retrospective case series and proposed surgical risk scoring system. J Neurooncol 2021; 153:331-342. [PMID: 33973146 DOI: 10.1007/s11060-021-03773-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 05/06/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE Foramen magnum meningiomas (FMMs) are a major surgical challenge, due to relevant surgical morbidity and mortality. The paper aims to review the clinical (symptomatic improvement, complication rate, length of hospital stay) and radiological outcome (completeness of resection) of microsurgical resection of FMMs, and to identify predictors of complications. METHODS A multi-institutional retrospective review of prospectively maintained database of FMMs included 51 patients (74.5% females) with a median tumor volume of 8.18 cm3 (range, 1.77-57.9 cm3) and median follow-up of 36 months (range, 0.30-180.0 months). Tumors were resected though suboccipital approach (58.8%) or posterior-lateral approaches (39.3%), including far-lateral, extreme lateral and transcondylar approaches. RESULTS Gross-total resection (GTR) was achieved in 80.4% and 98% of cases did not present tumor regrowth or recurrence. Clinical symptoms improved in 34 patients (66.7%) and worsened in 5 (9.8%). The median length of hospital stay was 5 days. Mortality was null. Postoperative complications developed in 15 patients (29.4%), with cerebrospinal fluid leak (7.8%) and lower cranial nerves deficits (7.8%) as the most frequent. Craniospinal location (p = 0.03), location anterior to the dentate ligament (DL) (p = 0.02), involvement of vertebral artery (VA) (p = 0.03) were significantly associated with complication rate. These three elements allow calculating the Foramen Magnum Meningioma Risk Score (FRMMRS), to estimate the risk of post-operative complications. CONCLUSION Microsurgical resection allows for high GTR rate and low rate of tumor regrowth or recurrence, despite complications in one third of the patients. The FMMRS allows classifying FMMs and estimating the risk of post-operative complications.
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Affiliation(s)
- Nida Fatima
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, 94305, USA.,Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, USA
| | - John H Shin
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, USA
| | - William T Curry
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, USA
| | - Steven D Chang
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Antonio Meola
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, 94305, USA.
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Foramen magnum meningiomas: a systematic review and meta-analysis. Neurosurg Rev 2021; 44:2583-2596. [PMID: 33507444 PMCID: PMC8490226 DOI: 10.1007/s10143-021-01478-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/30/2020] [Accepted: 01/11/2021] [Indexed: 11/17/2022]
Abstract
Foramen magnum meningiomas (FMMs) account for 1.8–3.2% of all meningiomas. With this systematic review and meta-analysis, our goal is to detail epidemiology, clinical features, surgical aspects, and outcomes of this rare pathology. Using PRISMA 2015 guidelines, we reviewed case series, mixed series, or retrospective observational cohorts with description of surgical technique, patient and lesion characteristics, and pre- and postoperative clinical status. A meta-analysis was performed to search for correlations between meningioma characteristics and rate of gross total resection (GTR). We considered 33 retrospective studies or case series, including 1053 patients, mostly females (53.8%), with a mean age of 52 years. The mean follow-up was of 51 months (range 0–258 months). 65.6% of meningiomas were anterior, and the mean diameter was of 29 mm, treated with different surgical approaches. Postoperatively, 17.2% suffered complications (both surgery- and non-surgery-related) and 2.5% had a recurrence. The Karnofsky performance score improved in average after surgical treatment (75 vs. 81, p < 0.001). Our meta-analysis shows significant rates of GTR in cohorts with a majority of posterior and laterally located FMM (p = 0.025) and with a mean tumor less than 25 mm (p < 0.05). FMM is a rare and challenging pathology whose treatment should be multidisciplinary, focusing on quality of life. Surgery still remains the gold standard and aim at maximal resection with neurological function preservation. Adjuvant therapies are needed in case of subtotal removal, non-grade I lesions, or recurrence. Specific risk factors for recurrence, other than Simpson grading, need further research.
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Song G, Cheng Y, Bai X, Ren J, Li M, Meng G, Tang J, Liang J, Guo H, Chen G, Bao Y, Xiao X. Technique Nuances for Functional Preservation of Lower Cranial Nerves during Surgical Management of Ventral Foramen Magnum Meningiomas Via a Dorsal Lateral Approach. World Neurosurg 2020; 146:e1242-e1254. [PMID: 33276173 DOI: 10.1016/j.wneu.2020.11.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 11/24/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND This study established novel technique nuances in surgery for ventral foramen magnum meningiomas (vFMMs) via a dorsal lateral approach. METHODS From July 2012 to July 2019, 37 patients with vFMMs underwent tumor resection surgery and were operated on with a dorsal lateral approach. Two safe zones were selected as the entrance of the surgical corridor. Safe zone I was located between the dural attachment of the first dental ligament (FDL) and the branches of C1; safe zone II lay between the dural attachment of the FDL and the jugular foramen. The tumor was debulked first through safe zone I and then through safe zone II. The tumor was removed through a trajectory from the caudal to cephalad to allow tumor debulking from below and downward delivery, away from the brainstem and lower cranial nerves. RESULTS Thirty-three patients underwent gross total resection, and 4 patients underwent subtotal resection. Four patients transiently required a nasogastric feeding tube. All patients recovered within 3 months postoperatively. Three patients (8.1%) developed permanent mild hoarseness and dysphagia as a result of postoperative damage of cranial nerves IX and X. One patient underwent tracheotomy. No patient experienced tumor recurrence during the follow-up period. CONCLUSIONS We established a minimal retraction principle, in which the selection of 2 safe zones as the entrance of the surgical corridor, tumor removal from the inferior to superior direction, and debulking followed by devascularization were the key elements to implement the minimal retraction principle in vFMM surgery.
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Affiliation(s)
- Gang Song
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Ye Cheng
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xuesong Bai
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jian Ren
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Mingchu Li
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Guolu Meng
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jie Tang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jiantao Liang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Hongchuan Guo
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Ge Chen
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yuhai Bao
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xinru Xiao
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
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14
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Kwon SM, Na MK, Choi KS, Bang JH, Byoun HS, Han H, Nam YS. Comparative Cadaveric Analysis for Surgical Corridor and Maneuverability: Far-Lateral Approach and Its Transcondylar Extension. World Neurosurg 2020; 146:e979-e984. [PMID: 33220484 DOI: 10.1016/j.wneu.2020.11.063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The necessity of partial occipital condyle (OC) resection for lesions in the ventral craniocervical junction is debatable. This study's purpose was to compare the surgical exposure of the classic far-lateral approach (FLA) and transcondylar FLA. METHODS The classic FLA and transcondylar FLA were performed in 12 human cadaveric heads (24 sides). The surgical corridor of 3 levels (a: vagus nerve, b: from the midpoint of proximal ends of the vagus and hypoglossal nerves to the midpoint of the distal ends of each nerve, c: hypoglossal nerve) and the maneuverability (the area between neurovascular structures that limits instrumental maneuvers) were measured after each approach. RESULTS The surgical corridors were significantly greater in transcondylar FLA than in classic FLA (a: 14.4 ± 3.4 mm vs. 17.1 ± 4.4 mm, P < 0.001; b: 8.6 ± 2.9 mm vs. 11.2 ± 4.1 mm, P < 0.001; c: 5.5 ± 2.2 mm vs. 7.7 ± 2.8 mm, P < 0.001). Transcondylar FLA also provided greater maneuverability than classic FLA (73.2 ± 23.9 mm2 vs. 94.9 ± 32.2 mm2, P < 0.001). The increased length of the surgical corridor was greatest in a (a: 2.7 ± 2.3 mm, b: 2.6 ± 2.0 mm, c: 2.2 ± 1.4 mm). However, the rate of increase was greatest in c (a: 18.9 ± 16.4%, b: 30.4 ± 26.2%, c: 44.8 ± 27.2%). The area of increased maneuverability was 21.7 ± 20.3 mm2 (31.1 ± 27.8%) after partial OC resection. CONCLUSIONS Transcondylar FLA can significantly increase surgical exposure compared with the classic FLA, although also increasing surgical complications. Therefore, the surgical approach should be individualized according to each lesion and patient. The results of our study may assist in surgical decision-making regarding the need for OC resection.
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Affiliation(s)
- Sae Min Kwon
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu
| | - Min Kyun Na
- Department of Neurosurgery, College of Medicine, Hanyang University, Seoul
| | - Kyu-Sun Choi
- Department of Neurosurgery, College of Medicine, Hanyang University, Seoul
| | - Ji Hoon Bang
- Department of Neurosurgery, College of Medicine, Hanyang University, Seoul
| | - Hyoung Soo Byoun
- Department of Neurosurgery, Chungnam National University Sejong Hospital, Sejong
| | - Hoonsub Han
- Department of Anatomy, Catholic Institute for Applied Anatomy, College of Medicine, The Catholic University of Korea, Seoul
| | - Yong Seok Nam
- Department of Anatomy, Catholic Institute for Applied Anatomy, College of Medicine, The Catholic University of Korea, Seoul.
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15
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Abou-Madawi AM, ElKazaz MK, Alshatoury HA, Ali SH. Far-Lateral Approach for Ventral and Ventrolateral Upper Cervical Meningiomas: A Case Series and Literature Review. Asian Spine J 2020; 15:584-595. [PMID: 33160298 PMCID: PMC8561145 DOI: 10.31616/asj.2020.0270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/04/2020] [Indexed: 11/23/2022] Open
Abstract
STUDY DESIGN Retrospective cohort study. PURPOSE To evaluate the safety and efficacy of the far-lateral approach in the resection of ventral and ventrolateral upper cervical meningiomas. OVERVIEW OF LITERATURE Upper cervical meningiomas are a common disease entity. These lesions can be surgically treated via many accesses. The far-lateral approach is a very appealing technique for these lesions. METHODS We assessed 23 patients with a mean age of 57.3±15 years. According to the Japanese Orthopedic Association (JOA) scale; eight patients had grade 0, nine had grade I, and six had grade II. All patients underwent plain radiography and magnetic resonance imaging of the cervical spine. The foramen magnum was involved in 10 patients, C1-2 in seven, C2-3 in four, and C3-4 in two. All patients were operated via the far-lateral approach. RESULTS Gross total resection was achieved in 21 patients. Sixteen lesions were psammomatous, five were fibroblastic, and two were meningothelial meningiomas. The mean operative duration was 135±40 minutes, while the mean operative blood loss was 450±210 mL, and the mean hospital stay was 4.3±2.2 days. At the final follow-up that was conducted at 27.6±21 months and as per the JOA score; 16 patients were classified into grade 0 and 7 into grade II. The condition of none of our patients deteriorated postoperatively. There was no significant correlation of the clinical outcome with tumor level, pathological subtype of the tumor, symptom duration, age, and sex. There was no significant correlation of tumor resection completeness with tumor level, tumor pathological subtype, or tumor topography (ventral or ventrolateral). CONCLUSIONS The far-lateral approach is a safe and effective access for ventral and ventrolateral cervical meningiomas. It allows direct access to tumor with no spinal cord or nerve roots traction, and thus may yield a fairly better outcome than the standard posterior approach.
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Affiliation(s)
- Ali M Abou-Madawi
- Department of Neurosurgery, Suez Canal University Hospital, Ismailia, Egypt
| | - Mohamed K ElKazaz
- Department of Neurosurgery, Suez Canal University Hospital, Ismailia, Egypt
| | | | - Sherif H Ali
- Department of Neurosurgery, Suez Canal University Hospital, Ismailia, Egypt
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16
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Sai Kiran NA, Sivaraju L, Furtado SV, Vidyasagar K, Raj V, Aryan S, Thakar S, Mohan D, Hegde AS. Far lateral approach without occipital condylar resection for intradural ventral/ventrolateral foramen magnum tumors and aneurysms of V4 segment of vertebral artery: Review of surgical results. Clin Neurol Neurosurg 2020; 197:106163. [PMID: 32916393 DOI: 10.1016/j.clineuro.2020.106163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Controversies exist regarding the need and extent of condylar resection for safe surgical management of intradural ventral/ventrolateral foramen magnum (VFM) tumors and aneurysms of V4 segment of vertebral artery (VA) by far lateral approach. This retrospective study was conducted to evaluate the results of basic far lateral approach(retrocondylar approach) without upfront occipital condylar resection. METHODS AND RESULTS Twenty one patients underwent surgery via far lateral approach for intradural VFM tumors and aneurysms of V4 segment of VA at Sri Sathya Sai Institute of Higher Medical Sciences during 9 years(2008-2016) study period. Eight patients had VA aneurysms and 13 patients had intradural VFM tumors. After basic far lateral approach(retrocondylar approach), dura was opened and checked if the exposure was adequate for safe surgery. Retrocondylar approach provided adequate exposure for all these lesions and resection of occipital condyle/jugular tubercle was not required in any of these cases. Skeletonization or transposition of VA was not done in any of these cases. Gross total resection of the tumor could be done in 9 patients(9/13-69.2 %) and near total excision (>95 %) in 4 patients (4/13-30.8 %). Seven of the 8 VA aneurysms were successfully clipped. Outcome at a final follow up of 3 months or more was good(mRS<2) in 19 patients(19/21-90.5 %) and poor in 2 patients. Complications included lower cranial nerve deficits [transient-2/21(9.5 %), persisting-2/21(9.5 %)], motor deficits(2/21-9.5%), seventh nerve paresis(1/21-4.8%), sixth nerve paresis(2/21-9.5%) and pseudomeningocele(1/21-4.8%). CONCLUSION Basic far lateral (retrocondylar) approach provides excellent exposure for majority of VFM tumors and aneurysms of V4 segment of VA. Condylar resection(transcondylar approach), drilling of jugular tubercle (transtubercular approach), skeletonization/transposition of VA might not be required for safe surgical management of majority of these lesions.
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Affiliation(s)
- Narayanam Anantha Sai Kiran
- Department and Institution, Department of Neurosurgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, 560066, India
| | - Laxminadh Sivaraju
- Department and Institution, Department of Neurosurgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, 560066, India.
| | - Sunil Valentine Furtado
- Department and Institution, Department of Neurosurgery, MS Ramaiah Medical College and Hospital, M S Ramaiah Nagar, Mathikere, Bangalore, 560054, India
| | - Kanneganti Vidyasagar
- Department and Institution, Department of Neurosurgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, 560066, India
| | - Vivek Raj
- Department and Institution, Department of Neurosurgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, 560066, India
| | - Saritha Aryan
- Department and Institution, Department of Neurosurgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, 560066, India
| | - Sumit Thakar
- Department and Institution, Department of Neurosurgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, 560066, India
| | - Dilip Mohan
- Department and Institution, Department of Neurosurgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, 560066, India
| | - Alangar S Hegde
- Department and Institution, Department of Neurosurgery, Sri Sathya Sai Institute of Higher Medical Sciences, Whitefield, Bangalore, 560066, India
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17
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Basma J, Michael LM, Sorenson JM, Robertson JH. Deconstruction of the Surgical Approach to the Jugular Foramen Region: Anatomical Study. J Neurol Surg B Skull Base 2019; 80:518-526. [PMID: 31534895 DOI: 10.1055/s-0038-1676512] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/25/2018] [Indexed: 10/27/2022] Open
Abstract
Introduction The jugular foramen occupies a complex and deep location between the skull base and the distal-lateral-cervical region. We propose a morphometric anatomical model to deconstruct its surgical anatomy and offer various quantifiable target-guided exposures and angles-of-attack. Methods Six cadaveric heads (12 sides) were dissected using a combined postauricular infralabyrinthine and distal transcervical approach with additional anterior transstyloid and posterior far lateral exposures. We identified anatomical landmarks and combined new and previously described contiguous triangles to expose the region; we defined the jugular and deep condylar triangles. Angles-of-attack to the jugular foramen were measured after removing the digastric muscle, styloid process, rectus capitis lateralis, and occipital condyle. Results Removing the digastric muscle and styloid process allowed 86.4° laterally and 85.5° anteriorly, respectively. Resecting the rectus capitis lateralis and jugular process provided the largest angle-of-attack (108.4° posteriorly). The occipital condyle can be drilled in the deep condylar triangle only adding 30.4° medially. A purely lateral approach provided a total of 280.3°. Cutting the jugular ring and mobilizing the vein can further expand the medial exposure. Conclusion The microsurgical anatomy of the jugular foramen can be deconstructed using a morphometric model, permitting a surgical approach customized to the pathology of interest.
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Affiliation(s)
- Jaafar Basma
- Department of Neurosurgery, University of Tennessee Health Sciences Center, Memphis, Tennessee, United States.,Medical Education Research Institute, Memphis, Tennessee, United States
| | - L Madison Michael
- Department of Neurosurgery, University of Tennessee Health Sciences Center, Memphis, Tennessee, United States.,Medical Education Research Institute, Memphis, Tennessee, United States.,Semmes-Murphey Clinic, Memphis, Tennessee, United States
| | - Jeffrey M Sorenson
- Department of Neurosurgery, University of Tennessee Health Sciences Center, Memphis, Tennessee, United States.,Medical Education Research Institute, Memphis, Tennessee, United States.,Semmes-Murphey Clinic, Memphis, Tennessee, United States
| | - Jon H Robertson
- Department of Neurosurgery, University of Tennessee Health Sciences Center, Memphis, Tennessee, United States.,Medical Education Research Institute, Memphis, Tennessee, United States.,Semmes-Murphey Clinic, Memphis, Tennessee, United States
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18
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Luzzi S, Giotta Lucifero A, Del Maestro M, Marfia G, Navone SE, Baldoncini M, Nuñez M, Campero A, Elbabaa SK, Galzio R. Anterolateral Approach for Retrostyloid Superior Parapharyngeal Space Schwannomas Involving the Jugular Foramen Area: A 20-Year Experience. World Neurosurg 2019; 132:e40-e52. [PMID: 31520759 DOI: 10.1016/j.wneu.2019.09.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 09/03/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND Schwannomas encompassing the superior parapharyngeal space are challenging lesions because of the anatomical complexity of this region and the frequent involvement of the neurovascular structures of the jugular foramen. The purpose of this study is to report the technical aspects and the advantages of the anterolateral approach, here proposed for schwannomas of this complex area. METHODS The main steps of the anterolateral approach are described in detail, along with the results of a consecutive series of 38 patients with a retrostyloid superior parapharyngeal schwannoma involving the jugular foramen operated on by means of this route between 1999 and 2019. RESULTS The supine position is generally preferred. The medial border of the sternocleidomastoid muscle, mastoid tip, and superior nuchal line are the landmarks for the hockey-stick skin incision. The accessory nerve is retrieved and mobilized cranially. Detachment of the sternocleidomastoid, digastric, and nuchal muscles allows for a 180° exposure of the extracranial side of the jugular foramen. Three working corridors, namely the pre-carotid, pre-jugular, and retro-jugular, allow access to the deeper part of the jugular foramen area and the superior parapharyngeal space. In the present series, a gross total resection was achieved in 89.4% of the patients. Three recurrences occurred after an average follow-up of 80.5 ± 51 months. CONCLUSIONS The anterolateral approach is highly effective in the treatment of retrostyloid superior parapharyngeal space schwannomas involving the jugular foramen. Its simplicity of execution, versatility, and very low morbidity are among its main strengths.
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Affiliation(s)
- Sabino Luzzi
- Neurosurgery Unit, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy; Neurosurgery Unit, Department of Surgical Sciences, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
| | - Alice Giotta Lucifero
- Neurosurgery Unit, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Mattia Del Maestro
- Neurosurgery Unit, Department of Surgical Sciences, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy; PhD School in Experimental Medicine, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Giovanni Marfia
- Experimental Neurosurgery and Cell Therapy Laboratory, Neurosurgery Unit, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy; Institute of Aerospace Medicine, Italian Air Force, Milan, Italy
| | - Stefania Elena Navone
- Experimental Neurosurgery and Cell Therapy Laboratory, Neurosurgery Unit, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Matias Baldoncini
- Microsurgical Neuroanatomy Laboratory-LaNeMic- II Division of Anatomy, Medicine School, University of Buenos Aires, Buenos Aires, Argentina; Department of Neurological Surgery, San Fernando Hospital, Buenos Aires, Argentina
| | - Maximiliano Nuñez
- Department of Neurosurgery, Hospital El Cruce, Buenos Aires, Argentina
| | - Alvaro Campero
- Servicio de Neurocirugía, Universidad Nacional de Tucumán, Tucumán, Argentina; Department of Neurosurgery, Hospital Padilla, San Miguel de Tucumán, Tucumán, Argentina
| | - Samer K Elbabaa
- Pediatric Neurosurgery, Pediatric Neuroscience Center of Excellence, Arnold Palmer Hospital for Children, Orlando, Florida, USA
| | - Renato Galzio
- Neurosurgery Unit, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy; Neurosurgery Unit, Department of Surgical Sciences, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
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19
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Beer-Furlan A, Vellutini EA, Gomes MQT, Cardoso AC, Prevedello LM, Todeschini AB, Prevedello DM. Approach Selection and Surgical Planning in Posterior Cranial Fossa Meningiomas: How I Do It. J Neurol Surg B Skull Base 2019; 80:380-391. [PMID: 31316884 DOI: 10.1055/s-0038-1675589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 09/23/2018] [Indexed: 10/28/2022] Open
Abstract
Posterior cranial fossa meningiomas represent approximately 9% of all the intracranial meningiomas. Despite the recent reports of radiation therapy in the management of these tumors, surgical resection continues to be the first line of treatment method aiming the permanent meningioma eradication. The evolution of imaging studies improved the preoperative evaluation of meningiomas providing greater anatomical detail of small structures not previously visualized. Nonetheless, the preoperative radiological evaluation should go beyond the differential diagnosis of a posterior fossa tumor. Anatomo-radiological assessment of meningiomas is discussed in detail. Based on our clinical experience, literature review, and case illustration, we highlight important preoperative anatomo-radiological aspects of posterior fossa meningiomas and their implications in the surgical management of these tumors.
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Affiliation(s)
- André Beer-Furlan
- Department of Neurological Surgery, Rush University Medical Center, Chicago, IL, United States
| | | | - Marcos Q T Gomes
- DFVneuro - Division of Neurosurgery, São Paulo, São Paulo, Brazil
| | | | - Luciano M Prevedello
- Department of Radiology, Wexner Medical Center, The Ohio State University College of Medicine, Columbus, Ohio, United States
| | - Alexandre B Todeschini
- Department of Neurological Surgery, Wexner Medical Center, The Ohio State University College of Medicine, Columbus, Ohio, United States
| | - Daniel M Prevedello
- Department of Neurological Surgery, Wexner Medical Center, The Ohio State University College of Medicine, Columbus, Ohio, United States
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20
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Comparative Analysis of the Subtonsillar, Far-Lateral, Extreme-Lateral, and Endoscopic Far-Medial Approaches to the Lower Clivus: An Anatomical Cadaver Study. World Neurosurg 2019; 127:e1083-e1096. [DOI: 10.1016/j.wneu.2019.04.048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/03/2019] [Accepted: 04/04/2019] [Indexed: 11/22/2022]
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21
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Zanoletti E, Mazzoni A, Martini A, Abbritti RV, Albertini R, Alexandre E, Baro V, Bartolini S, Bernardeschi D, Bivona R, Bonali M, Borghesi I, Borsetto D, Bovo R, Breun M, Calbucci F, Carlson ML, Caruso A, Cayé-Thomasen P, Cazzador D, Champagne PO, Colangeli R, Conte G, D'Avella D, Danesi G, Deantonio L, Denaro L, Di Berardino F, Draghi R, Ebner FH, Favaretto N, Ferri G, Fioravanti A, Froelich S, Giannuzzi A, Girasoli L, Grossardt BR, Guidi M, Hagen R, Hanakita S, Hardy DG, Iglesias VC, Jefferies S, Jia H, Kalamarides M, Kanaan IN, Krengli M, Landi A, Lauda L, Lepera D, Lieber S, Lloyd SLK, Lovato A, Maccarrone F, Macfarlane R, Magnan J, Magnoni L, Marchioni D, Marinelli JP, Marioni G, Mastronardi V, Matthies C, Moffat DA, Munari S, Nardone M, Pareschi R, Pavone C, Piccirillo E, Piras G, Presutti L, Restivo G, Reznitsky M, Roca E, Russo A, Sanna M, Sartori L, Scheich M, Shehata-Dieler W, Soloperto D, Sorrentino F, Sterkers O, Taibah A, Tatagiba M, Tealdo G, Vlad D, Wu H, Zanetti D. Surgery of the lateral skull base: a 50-year endeavour. ACTA OTORHINOLARYNGOLOGICA ITALICA : ORGANO UFFICIALE DELLA SOCIETA ITALIANA DI OTORINOLARINGOLOGIA E CHIRURGIA CERVICO-FACCIALE 2019; 39:S1-S146. [PMID: 31130732 PMCID: PMC6540636 DOI: 10.14639/0392-100x-suppl.1-39-2019] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Disregarding the widely used division of skull base into anterior and lateral, since the skull base should be conceived as a single anatomic structure, it was to our convenience to group all those approaches that run from the antero-lateral, pure lateral and postero-lateral side of the skull base as “Surgery of the lateral skull base”. “50 years of endeavour” points to the great effort which has been made over the last decades, when more and more difficult surgeries were performed by reducing morbidity. The principle of lateral skull base surgery, “remove skull base bone to approach the base itself and the adjacent sites of the endo-esocranium”, was then combined with function preservation and with tailoring surgery to the pathology. The concept that histology dictates the extent of resection, balancing the intrinsic morbidity of each approach was the object of the first section of the present report. The main surgical approaches were described in the second section and were conceived not as a step-by-step description of technique, but as the highlighthening of the surgical principles. The third section was centered on open issues related to the tumor and its treatment. The topic of vestibular schwannoma was investigated with the current debate on observation, hearing preservation surgery, hearing rehabilitation, radiotherapy and the recent efforts to detect biological markers able to predict tumor growth. Jugular foramen paragangliomas were treated in the frame of radical or partial surgery, radiotherapy, partial “tailored” surgery and observation. Surgery on meningioma was debated from the point of view of the neurosurgeon and of the otologist. Endolymphatic sac tumors and malignant tumors of the external auditory canal were also treated, as well as chordomas, chondrosarcomas and petrous bone cholesteatomas. Finally, the fourth section focused on free-choice topics which were assigned to aknowledged experts. The aim of this work was attempting to report the state of the art of the lateral skull base surgery after 50 years of hard work and, above all, to raise questions on those issues which still need an answer, as to allow progress in knowledge through sharing of various experiences. At the end of the reading, if more doubts remain rather than certainties, the aim of this work will probably be achieved.
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Affiliation(s)
- E Zanoletti
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - A Mazzoni
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - A Martini
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - R V Abbritti
- Department of Neurosurgery, Lariboisière Hospital, University of Paris Diderot, Paris, France
| | | | - E Alexandre
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - V Baro
- Academic Neurosurgery, Department of Neuroscience DNS, University of Padova Medical School, Padova, Italy
| | - S Bartolini
- Neurosurgery, Bellaria Hospital, Bologna, Italy
| | - D Bernardeschi
- AP-HP, Groupe Hôspital-Universitaire Pitié-Salpêtrière, Neuro-Sensory Surgical Department and NF2 Rare Disease Centre, Paris, France
- Sorbonne Université, Paris, France
| | - R Bivona
- ENT and Skull-Base Surgery Department, Department of Neurosciences, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - M Bonali
- Otolaryngology-Head and Neck Surgery Department, University Hospital of Modena, Italy
| | - I Borghesi
- Neurosurgery, Maria Cecilia Hospital, Cotignola (RA), Italy
| | - D Borsetto
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - R Bovo
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - M Breun
- Department of Neurosurgery, Julius Maximilians University Hospital Würzburg, Bavaria, Germany
| | - F Calbucci
- Neurosurgery, Maria Cecilia Hospital, Cotignola (RA), Italy
| | - M L Carlson
- Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, MN, USA
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
| | - A Caruso
- Gruppo Otologico, Piacenza-Rome, Italy
| | - P Cayé-Thomasen
- The Department of Otorhinolaryngology, Head & Neck Surgery and Audiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - D Cazzador
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
- Department of Neuroscience DNS, Section of Human Anatomy, Padova University, Padova, Italy
| | - P-O Champagne
- Department of Neurosurgery, Lariboisière Hospital, University of Paris Diderot, Paris, France
| | - R Colangeli
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - G Conte
- Department of Neuroradiology, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milano, Italy
| | - D D'Avella
- Academic Neurosurgery, Department of Neuroscience DNS, University of Padova Medical School, Padova, Italy
| | - G Danesi
- ENT and Skull-Base Surgery Department, Department of Neurosciences, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - L Deantonio
- Department of Radiation Oncology, University Hospital Maggiore della Carità, Novara, Italy
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - L Denaro
- Academic Neurosurgery, Department of Neuroscience DNS, University of Padova Medical School, Padova, Italy
| | - F Di Berardino
- Unit of Audiology, Department of Clinical Sciences and Community Health, University of Milano, Italy
- Department of Surgery, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milano, Italy
| | - R Draghi
- Neurosurgery, Maria Cecilia Hospital, Cotignola (RA), Italy
| | - F H Ebner
- Department of Neurosurgery, Eberhard Karls University Tübingen, Germany
| | - N Favaretto
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - G Ferri
- Otolaryngology-Head and Neck Surgery Department, University Hospital of Modena, Italy
| | | | - S Froelich
- Department of Neurosurgery, Lariboisière Hospital, University of Paris Diderot, Paris, France
| | | | - L Girasoli
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - B R Grossardt
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - M Guidi
- Gruppo Otologico, Piacenza-Rome, Italy
| | - R Hagen
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, "Julius-Maximilians" University Hospital of Würzburg, Bavaria, Germany
| | - S Hanakita
- Department of Neurosurgery, Lariboisière Hospital, University of Paris Diderot, Paris, France
| | - D G Hardy
- Department of Neurosurgery, Cambridge University Hospital, Cambridge, UK
| | - V C Iglesias
- ENT and Skull-Base Surgery Department, Department of Neurosciences, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - S Jefferies
- Oncology Department, Cambridge University Hospital, Cambridge, UK
| | - H Jia
- Department of Otolaryngology Head and Neck Surgery, Shanghai Ninh People's Hospital, Shanghai Jiatong University School of Medicine, China
| | - M Kalamarides
- AP-HP, Groupe Hôspital-Universitaire Pitié-Salpêtrière, Neuro-Sensory Surgical Department and NF2 Rare Disease Centre, Paris, France
- Sorbonne Université, Paris, France
| | - I N Kanaan
- Department of Neurosciences, King Faisal Specialist Hospital & Research Center, Alfaisal University, College of Medicine, Riyadh, KSA
| | - M Krengli
- Department of Radiation Oncology, University Hospital Maggiore della Carità, Novara, Italy
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
| | - A Landi
- Academic Neurosurgery, Department of Neuroscience DNS, University of Padova Medical School, Padova, Italy
| | - L Lauda
- Gruppo Otologico, Piacenza-Rome, Italy
| | - D Lepera
- ENT & Skull-Base Department, Ospedale Nuovo di Legnano, Legnano (MI), Italy
| | - S Lieber
- Department of Neurosurgery, Eberhard Karls University Tübingen, Germany
| | - S L K Lloyd
- Department of Neuro-Otology and Skull-Base Surgery Manchester Royal Infirmary, Manchester, UK
| | - A Lovato
- Department of Neuroscience DNS, Audiology Unit, Padova University, Treviso, Italy
| | - F Maccarrone
- Otolaryngology-Head and Neck Surgery Department, University Hospital of Modena, Italy
| | - R Macfarlane
- Department of Neurosurgery, Cambridge University Hospital, Cambridge, UK
| | - J Magnan
- University Aix-Marseille, France
| | - L Magnoni
- Unit of Audiology, Department of Clinical Sciences and Community Health, University of Milano, Italy
- Department of Surgery, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milano, Italy
| | - D Marchioni
- Otolaryngology-Head and Neck Surgery Department, University Hospital of Verona, Italy
| | | | - G Marioni
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | | | - C Matthies
- Department of Neurosurgery, Julius Maximilians University Hospital Würzburg, Bavaria, Germany
| | - D A Moffat
- Department of Neuro-otology and Skull Base Surgery, Cambridge University Hospital, Cambridge, UK
| | - S Munari
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - M Nardone
- ENT Department, Treviglio (BG), Italy
| | - R Pareschi
- ENT & Skull-Base Department, Ospedale Nuovo di Legnano, Legnano (MI), Italy
| | - C Pavone
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | | | - G Piras
- Gruppo Otologico, Piacenza-Rome, Italy
| | - L Presutti
- Otolaryngology-Head and Neck Surgery Department, University Hospital of Modena, Italy
| | - G Restivo
- ENT and Skull-Base Surgery Department, Department of Neurosciences, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - M Reznitsky
- The Department of Otorhinolaryngology, Head & Neck Surgery and Audiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - E Roca
- Department of Neurosurgery, Lariboisière Hospital, University of Paris Diderot, Paris, France
| | - A Russo
- Gruppo Otologico, Piacenza-Rome, Italy
| | - M Sanna
- Gruppo Otologico, Piacenza-Rome, Italy
| | - L Sartori
- Academic Neurosurgery, Department of Neuroscience DNS, University of Padova Medical School, Padova, Italy
| | - M Scheich
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, "Julius-Maximilians" University Hospital of Würzburg, Bavaria, Germany
| | - W Shehata-Dieler
- Department of Otorhinolaryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, "Julius-Maximilians" University Hospital of Würzburg, Bavaria, Germany
| | - D Soloperto
- Otolaryngology-Head and Neck Surgery Department, University Hospital of Verona, Italy
| | - F Sorrentino
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - O Sterkers
- AP-HP, Groupe Hôspital-Universitaire Pitié-Salpêtrière, Neuro-Sensory Surgical Department and NF2 Rare Disease Centre, Paris, France
- Sorbonne Université, Paris, France
| | - A Taibah
- Gruppo Otologico, Piacenza-Rome, Italy
| | - M Tatagiba
- Department of Neurosurgery, Eberhard Karls University Tübingen, Germany
| | - G Tealdo
- Department of Neuroscience DNS, Otolaryngology Section, Padova University, Padova, Italy
| | - D Vlad
- Gruppo Otologico, Piacenza-Rome, Italy
| | - H Wu
- Department of Otolaryngology Head and Neck Surgery, Shanghai Ninh People's Hospital, Shanghai Jiatong University School of Medicine, China
| | - D Zanetti
- Unit of Audiology, Department of Clinical Sciences and Community Health, University of Milano, Italy
- Department of Surgery, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milano, Italy
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Matsushima K, Kohno M, Nakajima N, Izawa H, Ichimasu N, Tanaka Y, Sora S. Retrosigmoid Intradural Suprajugular Approach to Jugular Foramen Tumors with Intraforaminal Extension: Surgical Series of 19 Cases. World Neurosurg 2019; 125:e984-e991. [DOI: 10.1016/j.wneu.2019.01.223] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 01/29/2019] [Accepted: 01/31/2019] [Indexed: 11/28/2022]
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Matsuo S, Komune N, Kurogi R, Akagi Y, Iihara K. Relationship Between the Horizontal Part of the Sigmoid Sinus and the Line Through the Digastric Point and Posterior Edge of the Condyle: An Anatomic and Radiologic Study. World Neurosurg 2018; 114:e597-e604. [PMID: 29548955 DOI: 10.1016/j.wneu.2018.03.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 03/02/2018] [Accepted: 03/05/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVE This study aims to determine whether the line between the digastric point and posterior edge of the occipital condyle (DC line) could be a new surface landmark for the posterior margin of the horizontal part of the sigmoid sinus. METHODS Cadaveric specimens were used to show the relationship between the DC line and retrosigmoid craniotomy. Three-dimensional computed tomography angiography images of adult heads (56 sides) were analyzed to measure the distance between the DC line and the horizontal part of the sigmoid sinus at the digastric point, posterior edge of the condyle, and midpoint of the line. RESULTS The DC line was roughly parallel and posterior to the posterior margin of the sigmoid sinus. The distance between the DC line and the posterior edge of the sigmoid sinus at the digastric point, condyle, and midpoint of the line measured 4.7 ± 3.3 mm, 5.9 ± 2.6 mm, and 1.3 ± 2.2 mm, respectively. All sigmoid sinuses coursed anterior to the digastric point and condyle but in 17.9% (10/56 sides) the posterior edge of the sigmoid sinus extended a maximum of 4.1 mm posterior to the midpoint of the DC line. CONCLUSIONS The DC line can be used as a new surface landmark for estimating the position of the horizontal part of the sigmoid sinus. The posterior edge of the sinus may extend posterior to the line at the midpoint; thus, care should be taken to prevent sinus injury when drilling around the midpoint of the line.
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Affiliation(s)
- Satoshi Matsuo
- Department of Neurosurgery, National Hospital Organization, Kyushu Medical Center, Fukuoka, Japan.
| | - Noritaka Komune
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ryota Kurogi
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yojiro Akagi
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koji Iihara
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Campero Á, Ajler P, Roman G, Rivadeneira C. [Foramen magnum meningiomas: A report of 12 cases and literature review]. Surg Neurol Int 2017; 8:S25-S36. [PMID: 29142778 PMCID: PMC5672662 DOI: 10.4103/sni.sni_277_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 07/31/2017] [Indexed: 12/05/2022] Open
Abstract
OBJECTIVES The primary aim of this study was to assess the results attained for 12 patients with an anterior or lateral foramen magnum meningioma, treated microsurgically. METHODS Between June 2005 and December 2016, 12 patients with foramen magnum meningiomas underwent microsurgical resection. Patients' age and gender, tumor localization (anterior or lateral), symptoms, approach, and postoperative results were analyzed. RESULTS Eight of the 12 patients were women. The average age of the patients was 47 years. In 8 patients, the tumor was located anteriorly and in 4 patients laterally. The main symptom was occipitocervical pain (8 patients), followed by tetraparesia (3 patients). For all the anterior foramen magnum meningiomas, an extreme-lateral transcondylar approach was performed. In cases where the tumor was lateral, an extreme-lateral retrocondylar approach was adopted. Total and subtotal resection was achieved in 10 and 2 patients, respectively. In the latter instances, a very small piece of tumor remained around the vertebral artery or inside the jugular foramen. Three patients exhibited postoperative cranial nerve XII palsy and 2 cranial nerve XI palsy. One patient experienced cerebrospinal fluid leakage. CONCLUSIONS Microsurgery for both anterior and lateral foramen magnum meningiomas can be performed safely and effectively. What is necessary is: (a) good anatomical knowledge of the region; (b) two-step muscle dissection to expose the suboccipital triangle and vertebral artery; (c) to adopt an extreme-lateral retrocondylar approach for lateral meningiomas, and an extreme-lateral transcondylar approach for anterior tumors; and (d) good microsurgical techniques.
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Affiliation(s)
- Álvaro Campero
- Servicio de Neurocirugía, Hospital Padilla, Tucumán, Argentina
- Servicio de Neurocirugía, Sanatorio 9 de Julio, Tucumán, Argentina
| | - Pablo Ajler
- Servicio de Neurocirugía, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Guillermo Roman
- Servicio de Neurocirugía, Hospital Cullen, Santa Fé, Argentina
| | - Conrado Rivadeneira
- Servicio de Neurocirugía, Hospital Padilla, Tucumán, Argentina
- Servicio de Neurocirugía, Sanatorio 9 de Julio, Tucumán, Argentina
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Leon-Ariza DS, Campero A, Romero Chaparro RJ, Prada DG, Vargas Grau G, Rhoton AL. Key Aspects in Foramen Magnum Meningiomas: From Old Neuroanatomical Conceptions to Current Far Lateral Neurosurgical Intervention. World Neurosurg 2017; 106:477-483. [DOI: 10.1016/j.wneu.2017.07.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 07/03/2017] [Accepted: 07/06/2017] [Indexed: 11/29/2022]
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Tjahjadi M, Rezai Jahromi B, Serrone J, Nurminen V, Choque-Velasquez J, Kivisaari R, Lehto H, Niemelä M, Hernesniemi J. Simple Lateral Suboccipital Approach and Modification for Vertebral Artery Aneurysms: A Study of 52 Cases Over 10 Years. World Neurosurg 2017; 108:336-346. [PMID: 28899830 DOI: 10.1016/j.wneu.2017.09.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 08/31/2017] [Accepted: 09/02/2017] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Complex skull base approaches are frequently used to treat intracranial vertebral artery (VA) and proximal posterior inferior cerebellar artery (PICA) aneurysms. These complex procedures are associated with higher risk of neurovascular injury. Hence, a less-invasive surgical approach is needed to improve the efficacy and safety of treatment. METHODS A retrospective analysis was conducted on clinical and radiologic data from surgeries in which simple lateral suboccipital and "lateral-enough" approaches were used to clip VA aneurysms in the Department of Neurosurgery at Helsinki University Central Hospital from 2000 to 2009. RESULTS Fifty-two VA or PICA aneurysms were treated using the simple lateral suboccipital approach. Sixteen patients (31%) presented with an unruptured aneurysm, 21 patients (40%) with World Federation of Neurosurgical Societies (WFNS) grade 1-3, and 15 patients (29%) with World Federation of Neurosurgical Societies grade 4-5. The aneurysms were saccular in 48 cases (92%), dissecting in 3 cases (6%), and fusiform in 1 case (2%). The most common aneurysm location was the VA-PICA junction (81%). The mean final modified Rankin Scale score was 2, and in unruptured cases, all patients had favorable clinical outcomes. The main causes of unfavorable outcome were poor preoperative clinical grade (P = 0.002), preoperative intraventricular hemorrhage (P = 0.008), postoperative hydrocephalus (P = 0.003), brain infarction (P = 0.005), and postoperative pneumonia (P < 0.001). CONCLUSIONS We describe a 10-year experience using a simple lateral suboccipital approach and its modification by the senior author (J.H.) to treat VA and proximal PICA aneurysms. Unfavorable outcome was related to the poor preoperative clinical grade, preoperative intraventricular hemorrhage, and postoperative pneumonia.
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Affiliation(s)
- Mardjono Tjahjadi
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Behnam Rezai Jahromi
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Joseph Serrone
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Ville Nurminen
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Joham Choque-Velasquez
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Riku Kivisaari
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Hanna Lehto
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Mika Niemelä
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Juha Hernesniemi
- Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Dumbbell-Shaped Jugular Foramen Tumors Extending to the Neck: Surgical Considerations Based on Imaging Findings. World Neurosurg 2017; 104:14-23. [PMID: 28499902 DOI: 10.1016/j.wneu.2017.04.175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 04/29/2017] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Dumbbell-shaped jugular foramen tumors (DSJFTs) extending to the neck present diagnostic and management difficulties because of their rarity, various pathologies, and multidisciplinary involvement. Accurate imaging findings are of great importance for surgical planning and clinical outcomes. However, few articles have discussed this issue to date. METHODS Thirty-one patients with DSJFTs extending to the neck were surgically treated in a single stage at our institute. Their clinical and radiologic features, operative procedures, and outcomes were retrospectively reviewed. RESULTS Preoperative correct diagnosis of DSJFTs extending to the neck was made in all cases of benign tumor and in only 3 cases of malignant tumors in this series. All tumors were removed via a craniocervical approach by a multidisciplinary skull base team because of both their intracranial and neck extensions. Total removal was achieved in 26 patients (83.9%). Preoperative symptoms were improved in 18 patients, whereas new or worsening lower cranial nerve deficits occurred in 4 patients postoperatively. Follow-up (1-132 months, mean 64.4 months) was available in 90.3% of the patients. No clinical or radiologic signs of tumor recurrence were observed. CONCLUSIONS Preoperative radiologic evaluation of DSJFTs extending to the neck is essential for differential diagnosis, patient selection, and surgical planning. Favorable surgical outcomes can be achieved via a craniocervical approach, and some detailed imaging findings are helpful to increase the safety of tumor resection and reduce the morbidity of lower cranial nerve deficits and cerebrospinal fluid leakage.
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Eissa EM, Eldin MM. Odontoidectomy through posterior midline approach followed by same sitting occipitocervical fixation: A cadaveric study. JOURNAL OF CRANIOVERTEBRAL JUNCTION AND SPINE 2017; 8:58-63. [PMID: 28250638 PMCID: PMC5324362 DOI: 10.4103/0974-8237.199879] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECT Atlantoaxial instability with irreducible odontoid process is one of the challenges in spine surgery. These lesions are commonly treated through anterior transoral approach which is followed by posterior atlantoaxial fusion. However, there are still many limitations, especially cerebrospinal fluid fistula with subsequent life-threatening infection, difficulty in cases with limited opening of mouth due to temporomandibular arthritis or anomalies of naso-oropharynx. Türe et al. used the extreme lateral transatlas approach for the removal of odontoid. In this study, we applied the transatlas approach but through posterior midline incision aiming to evaluate its safety and feasibility. METHODS In four silicon injected, formalin-fixed cadaver heads, posterior removal of the odontoid was done through the familiar midline incision and subperiosteal muscle separation and elevation of muscles as on unit followed by microscopic exposure and mobilization of the vertebral artery after opening of the foramen transversarium of atlas followed by drilling of lateral mass and odontoidectomy. Occipitocervical stabilization was done between the occiput and C2, C3 (C1 lateral mass screw can be added in the contralateral side for better stabilization). RESULTS Unilateral excision of the lateral mass of atlas after mobilization of the vertebral artery provided safe and excellent exposure of the odontoid process in the four cadaver heads without injury to vertebral artery or retraction of the dura. CONCLUSION Posterior removal of the odontoid can be done safely through wide and sterile operative field, and occipitocervical fixation performed at the same sitting without need for another operation and hence avoids the risk of cord injury from repositioning.
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Griessenauer CJ, McGrew B, Matusz P, De Caro R, Loukas M, Tubbs RS. Surgical Approaches to the Jugular Foramen: A Comprehensive Review. J Neurol Surg B Skull Base 2016; 77:260-4. [PMID: 27175322 DOI: 10.1055/s-0035-1567863] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 10/05/2015] [Indexed: 10/22/2022] Open
Abstract
Introduction Multiple surgical approaches and combinations thereof have been described to gain access to the jugular foramen. In an area laden with important neurovascular structures, care must be taken in choosing the best surgical approach for treatment of rare pathologies involving this region. Methods This manuscript provides a comprehensive review of the relevant anatomy along with an overview of the various approaches to the jugular foramen. In an attempt to simplify the various concepts, we propose a basic distinction into anterolateral and posterolateral approaches based on the main trajectory targeting the jugular foramen. Conclusion The anatomy surrounding the jugular foramen is exceedingly complex and requires in-depth understanding of skull base and head and neck relationships.
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Affiliation(s)
- Christoph J Griessenauer
- Division of Neurosurgery, Beth Israel Deaconess Medical Center, Harvard University, Boston, MA, United States
| | - Benjamin McGrew
- Division of Otolaryngology, Department of Surgery, University of Alabama at Birmingham, AL, United States
| | - Petru Matusz
- Department of Anatomy, "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania
| | - Raffaele De Caro
- Institute of Human Anatomy, Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Marios Loukas
- Department of Anatomical Sciences, School of Medicine, St George's University, Grenada, West Indies
| | - R Shane Tubbs
- Pediatric Neurosurgery, Children's of Alabama, Birmingham, AL, United States
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Park HH, Lee KS, Hong CK. Vertebral Artery Transposition Via an Extreme-Lateral Approach for Anterior Foramen Magnum Meningioma or Craniocervical Junction Tumors. World Neurosurg 2016; 88:154-165. [DOI: 10.1016/j.wneu.2015.12.073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 12/17/2015] [Accepted: 12/17/2015] [Indexed: 10/22/2022]
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Yamahata H, Yamaguchi S, Takayasu M, Takasaki K, Osuka K, Aoyama M, Yasuda M, Tokimura H, Kurisu K, Arita K. Exploitation of Simple Classification and Space Created by the Tumor for the Treatment of Foramen Magnum Meningiomas. World Neurosurg 2016; 87:1-7. [DOI: 10.1016/j.wneu.2015.09.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 09/07/2015] [Accepted: 09/08/2015] [Indexed: 10/23/2022]
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Konar S, Bir SC, Maiti TK, Kalakoti P, Nanda A. Mirror Meningioma at Foramen Magnum: A Management Challenge. World Neurosurg 2015; 85:364.e1-4. [PMID: 26283489 DOI: 10.1016/j.wneu.2015.08.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 07/31/2015] [Accepted: 08/01/2015] [Indexed: 11/24/2022]
Abstract
BACKGROUND Meningiomas of the foramen magnum are among the most challenging of all skull base lesions. Controversies continue regarding the most appropriate approach to this critical anatomic region. The authors report a first case in English literature about twin meningiomas arising from both sides of the ventrolateral dura at the foramen magnum. CASE DESCRIPTION Preoperative imaging showed a solitary mass engulfing the lower medulla. However, intraoperatively a twin mass was discovered. It encased the right side vertebral artery (VA) and abutted the left side. The unilateral far lateral transcondylar approach is not enough to resect both tumors at the same time. However, the far lateral transcondylar approach in both sides may compromise the stability and increase the risk of injury to either side of the neurovascular structures. CONCLUSIONS We suggest that resection can be safely achieved via the unilateral far lateral transcondylar approach followed by Gamma Knife radiosurgery (GKRS) or a staged bilateral approach.
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Affiliation(s)
- Subhas Konar
- Department of Neurosurgery, Louisiana State University Health-Shreveport, Shreveport, Louisiana, USA
| | - Shyamal C Bir
- Department of Neurosurgery, Louisiana State University Health-Shreveport, Shreveport, Louisiana, USA
| | - Tanmoy Kumar Maiti
- Department of Neurosurgery, Louisiana State University Health-Shreveport, Shreveport, Louisiana, USA
| | - Piyush Kalakoti
- Department of Neurosurgery, Louisiana State University Health-Shreveport, Shreveport, Louisiana, USA
| | - Anil Nanda
- Department of Neurosurgery, Louisiana State University Health-Shreveport, Shreveport, Louisiana, USA.
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Kim YD, Mendes GAC, Seoane P, Agrawal A, Maramreddy N, Nakaji P, Spetzler RF, Preul MC. Quantitative Anatomical Study of Tailored Far-Lateral Approach for the VA-PICA Regions. J Neurol Surg B Skull Base 2014; 76:57-65. [PMID: 25685651 DOI: 10.1055/s-0034-1389373] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 06/14/2014] [Indexed: 10/24/2022] Open
Abstract
Objective The extent of the far-lateral approach (FLA) has not yet been quantified for the region of the vertebral and posterior inferior cerebellar arteries (VA-PICA). We quantitatively analyzed six main sequential steps of the FLA. Methods A modified small FLA (msFLA) and a classic large FLA (clFLA) were performed sequentially on both sides of five cadaveric heads. A frameless navigational system was used to quantify the angle of attack for the origin (T1) and lateral medullary segment (T2) of the PICA and the surgical area of exposure above and below the vagus nerve (cranial nerve [CN] X). Results The total area of exposure above CN X increased significantly (p < 0.05) from the msFLA to the clFLA. However, the surgical exposure area below CN X did not change (p > 0.05). C1 hemilaminectomy increased (p < 0.05) the vertical angle of attack, and drilling the posteromedial third of the occipital condyle increased (p < 0.05) the horizontal angle of attack to the origin of the PICA. Conclusions For the VA-PICA region, the msFLA offered a similar practical surgical working area and similar angles of attack when compared with the clFLA. The FLA should be tailored based on the location, size, and pathology of lesions and on the exposure required for effective surgical treatment.
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Affiliation(s)
- Young-Don Kim
- Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, United States ; Department of Neurological Surgery, Daegu Catholic University Medical Center, Daegu, Korea
| | - George A C Mendes
- Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, United States
| | - Pablo Seoane
- Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, United States
| | - Abhishek Agrawal
- Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, United States
| | - Naveen Maramreddy
- Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, United States
| | - Peter Nakaji
- Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, United States
| | - Robert F Spetzler
- Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, United States
| | - Mark C Preul
- Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, United States
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Suslu HT, Gayretli O, Coskun O, Bozbuga M, Serifoglu L, Gurses IA. Anatomical and morphometrical evaluation of the jugular tubercle. Br J Neurosurg 2014; 28:503-6. [PMID: 24635526 DOI: 10.3109/02688697.2014.889656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The jugular tubercle (JT) is an important part of the craniovertebral junction. The removal of the JT in the far-lateral approach provides a significant increase in the operative space. The purpose of this morphometrical study was to define the anatomical variations of the JT. METHODS Thirty-eight dry skulls were included in this study. Seven anatomical parameters were defined and analyzed. The JT, hypoglossal canal (HC), jugular bulb, condylar fossa, occipital condyle (OC), internal jugular foramen, and condylar canal were selected as landmarks. The measurements were made separately for the right and the left sides. RESULTS Significant morphological variations in the JT were noted. A protuberance was apparent on the JT and classified according to its shape, size, and number. Morphological differences of protuberance of JT were described and classified into seven different types as follows: flat (Type I), sharp (Type II), circular (Type III), pin-point (Type IV), large (Type V), double (Type VI), and unclassified (Type VII). The HC was observed in all specimens. To define the relationship between the JT and the intracranial orifice of the HC, four localizations were identified. To define the relationship between the JT and the intracranial orifice of the HC. CONCLUSIONS Variations of the JT and the relationship of the JT to the neighboring bone and neural structures are important for modifications of the far-lateral approach. This study presents a detailed anatomical analysis of the shape, size, and orientation of the JT with a new description of protuberance of JT classified into seven types.
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Affiliation(s)
- Hikmet Turan Suslu
- Department of Neurosurgery, Dr. Lutfi Kırdar Kartal Education and Research Hospital , Istanbul , Turkey
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Far Lateral and Far Medial Approaches to the Foramen Magnum: Microsurgery or Endoscopy? World Neurosurg 2014; 81:283-4. [DOI: 10.1016/j.wneu.2013.03.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 03/14/2013] [Indexed: 11/18/2022]
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Matsushima K, Kawashima M, Matsushima T, Hiraishi T, Noguchi T, Kuraoka A. Posterior condylar canals and posterior condylar emissary veins—a microsurgical and CT anatomical study. Neurosurg Rev 2013; 37:115-26. [DOI: 10.1007/s10143-013-0493-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2012] [Revised: 02/01/2013] [Accepted: 03/10/2013] [Indexed: 11/28/2022]
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Deconde AS, Sanaiha Y, Suh JD, Bhuta S, Bergsneider M, Wang MB. Metastatic disease to the clivus mimicking clival chordomas. J Neurol Surg B Skull Base 2013; 74:292-9. [PMID: 24436927 DOI: 10.1055/s-0033-1348027] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 04/15/2013] [Indexed: 12/14/2022] Open
Abstract
Objectives/Hypothesis A comprehensive review of the literature of clival metastases and presentation of two additional cases. Study Design Literature review and report of two cases. Methods A literature review of the MEDLINE database (1950 to January 19, 2013) was performed to identify all cases of patients with metastatic disease to the clivus. Additionally, two novel cases are presented. Results In total, 47 cases were identified in the literature, including the two cases presented in this study. Metastatic disease to the clivus is the initial presenting symptom of the primary malignancy in 36% (13/36) of the cases. When there was a history of malignancy, the median interval of time to clival metastases was 24 months (range 1 to 172 months). Clinical symptoms manifested often as cranial neuropathies, with at least abducens palsies as the initial presenting symptom in 61.9% (26/42) of patients. Tumor pathology was diverse, but several pathologies were seen more commonly: prostate carcinoma (18.1%, 9/47), hepatocellular carcinoma (10.6%, 5/47), and thyroid follicular carcinoma (8.5%, 4/47). Conclusion Although clival metastases are extremely rare, they are an important part of the differential of clival masses as they can be the presenting symptom of distant malignancy. Level of Evidence 4.
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Affiliation(s)
- Adam S Deconde
- Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Yas Sanaiha
- Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Jeffrey D Suh
- Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Sunita Bhuta
- Department of Pathology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Marvin Bergsneider
- Department of Neurosurgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Marilene B Wang
- Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
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Benet A, Prevedello DM, Carrau RL, Rincon-Torroella J, Fernandez-Miranda JC, Prats-Galino A, Kassam AB. Comparative analysis of the transcranial "far lateral" and endoscopic endonasal "far medial" approaches: surgical anatomy and clinical illustration. World Neurosurg 2013; 81:385-96. [PMID: 23369939 DOI: 10.1016/j.wneu.2013.01.091] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 01/15/2013] [Accepted: 01/24/2013] [Indexed: 12/01/2022]
Abstract
OBJECTIVE The main aim of our study was to analyze and compare the surgical anatomy pertinent to the dorsal transcranial transcondylar (far lateral approach) with that of the ventral endoscopic endonasal transcondylar (far medial approach) route. METHODS Eight cadaveric specimens were dissected and analyzed bilaterally. Brainstem exposure and surgical corridor areas were measured. In addition, we present three clinical scenarios to illustrate the clinical feasibility of the proposed surgical strategies. RESULTS The hypoglossal nerve, vertebral artery, and hypoglossal canal divide the lower third of the clivus into ventromedial and dorsolateral compartments. The far medial approach provides significantly larger exposure of the brainstem in the ventromedial compartment (464.6 ± 68.34 mm(2)) compared with the far lateral approach (126.35 ± 32.25 mm(2)), P < 0.01. The far lateral approach provides a wide exposure of the brainstem in the dorsolateral compartment (295.24 ± 58.03 mm(2), 74% of the dorsolateral compartment). The exposure of the brainstem in the dorsolateral compartment is not possible using the endonasal route. The surgical corridor from one compartment to the other, through the lower cranial nerves, was significantly larger on the far lateral approach (78.19 ± 14.54 mm(2)) than on the far medial (23.77 ± 15.17 mm(2)), P = 0.03. CONCLUSIONS The far medial approach offers a safe, wide exposure of the lower third of the clivus for lesions that expand ventromedial to the hypoglossal nerve. The far lateral approach is most suitable for lesions located dorsolateral to the lower cranial nerves. The vertebral artery and hypoglossal canal are the most important landmarks to guide surgical planning. A combined endonasal-transcranial approach should be considered for resection of extensive lesions involving both ventromedial and dorsolateral compartments. We strive to encourage skull base surgeons to integrate endoscopic and microscopic approaches to the posterior fossa.
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Affiliation(s)
- Arnau Benet
- Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Laboratory of Surgical Neuroanatomy, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Daniel M Prevedello
- Department of Neurological Surgery, The Ohio State University, Columbus, Ohio, USA.
| | - Ricardo L Carrau
- Department of Otolaryngology-Head and Neck Surgery, The Ohio State University, Columbus, Ohio, USA
| | - Jordina Rincon-Torroella
- Laboratory of Surgical Neuroanatomy, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Juan C Fernandez-Miranda
- Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Alberto Prats-Galino
- Laboratory of Surgical Neuroanatomy, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Amin B Kassam
- Department of Neurological Surgery, University of Ottawa, Ottawa, Ontario, Canada
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[Occipito-cervical fixation in plasmocytoma. Method modification. Technical report]. Neurol Neurochir Pol 2012; 46:403-6. [PMID: 23023441 DOI: 10.5114/ninp.2012.30274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Intraoperative modification of use and stabilization of the Axon system (Synthes) for occipito-cervical fusion in a patient treated oncologically due to plasmocytoma is presented. Pathological fracture, range of the process and damage of anterior cervical fusion necessitated the use of occipito-cervical stabilization. Different anatomical conditions within the occipital bone in the form of its thinning was observed. Fixing with screws was impossible due to the bone structure. In consequence, modification of stabilization with an ad hoc elaborated technique (burr holes in the occipital bone and stabilization with titanium wire) was implemented. Modifications and specific indications related to the clinical course of plasmocytoma are discussed.
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Talacchi A, Biroli A, Soda C, Masotto B, Bricolo A. Surgical management of ventral and ventrolateral foramen magnum meningiomas: report on a 64-case series and review of the literature. Neurosurg Rev 2012; 35:359-67; discussion 367-8. [DOI: 10.1007/s10143-012-0381-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Revised: 08/06/2011] [Accepted: 09/25/2011] [Indexed: 11/24/2022]
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Bruneau M, George B. Classification system of foramen magnum meningiomas. JOURNAL OF CRANIOVERTEBRAL JUNCTION AND SPINE 2011; 1:10-7. [PMID: 20890409 PMCID: PMC2944858 DOI: 10.4103/0974-8237.65476] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background: Foramen magnum meningiomas (FMMs) are challenging tumors. We report a classification system based on our experience of 107 tumors. Materials and Methods: The three main algorithm criteria included the compartment of development of the tumor, its dural insertion, and its relation to the vertebral artery. Results: The compartment of development was most of the time intradural (101/107, 94.4%) and less frequently extradural (3/107, 2.8%) or both intra-extradural. (3/107, 2.8%). When developed inside the intradural compartment, FMMs were subdivided into posterior (6/104, 5.8%), lateral (57/104, 54.8%), and anterior (41/104, 39.4%), if their insertion was respectively posterior to the dentate ligament, anterior to the dentate ligament without or with extension over the midline. Anterior and lateral intradural lesions grew below (77/98, 78.6%), above (16/98, 16.3%), or on both sides (5/98, 5.1%) of the VA. Only three cases of extraduralFMMs (3/107, 2.8%) were resected by an antero-lateral approach while all the other ones (104/107, 97.2%) were removed successfully by a postero-lateral approach. Lower cranial nerves were displaced superiorly in FMM growing below the VA but their position cannot be anticipated in other situations. Conclusions: This classification system helps for defining the best surgical approach but also for anticipating the position of the lower cranial nerves and therefore for reducing the surgical morbidity.
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Affiliation(s)
- Michaël Bruneau
- Department of Neurosurgery, Erasme Hospital, Brussels, Belgium
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Starke RM, Nguyen JH, Reames DL, Rainey J, Sheehan JP. Gamma knife radiosurgery of meningiomas involving the foramen magnum. JOURNAL OF CRANIOVERTEBRAL JUNCTION AND SPINE 2011; 1:23-8. [PMID: 20890411 PMCID: PMC2944857 DOI: 10.4103/0974-8237.65478] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background: Foramen magnum meningiomas represent a challenging clinical entity. Although resection is performed for those with a mass effect, complete resection is not always feasible. For some patients, stereotactic radiosurgery may be used as the primary treatment modality. We evaluatedthe long-term outcome of Gamma Knife radiosurgery (GKRS) for the treatment of patientswith a foramen magnum meningioma. Materials and Methods: Between 1991 and 2005, 222 patients with a meningioma in the posterior fossa were treated with GKRS at the University of Virginia. Of these patients, 5 had meningiomas involving the foramen magnum. At the time of GKRS, the median age of the patients was 60 years (range, 51–78). Three patients were treated with radiosurgery following an initial resection and 2 were treated with upfront radiosurgery. The patients were assessed clinically and radiologically at routine intervals following GKRS. Results: The median tumor volume was 6.8 cc (range 1.9–17 cc). The GKRS tumor received a marginal dose of 12 Gy (range 10–15), and the median number of isocenters was 5 (range 3–19). The mean follow-up was 6 years (range 4–13). One lesion increased in size following GKRS requiring a second treatment, resulting in size stabilization. At the time of the last follow-up, all meningiomas had either demonstrated no growth (n = 4) or reduction in size (n = 1). No patients experienced post-radiotherapy complications. Conclusions: GKRS affords a high rate of tumor control and preservation of neurologic function for patients with foramen magnum meningiomas. Further study of its role in the neurosurgical management of such patients seems warranted.
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Affiliation(s)
- Robert M Starke
- Department of Neurological Surgery, University of Virginia, Charlottesville, VA, USA
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Kumar CV, Satyanarayana S, Rao BR, Palur RS. Extreme lateral approach to ventral and ventrolaterally situated lesions of the lower brainstem and upper cervical cord. Skull Base 2011; 11:265-75. [PMID: 17167629 PMCID: PMC1656882 DOI: 10.1055/s-2001-18633] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Lesions situated ventrally and ventrolaterally to the lower brainstem and upper cervical spinal cord test the skills of neurosurgeons. We present our experience with eight such patients who underwent the extreme lateral craniocervical approach. The pathologies encountered include three distal vertebral aneurysms, one prepontine epidermoid, one anterior foramen magnum meningioma, and three high cervical dumbbell neurofibromas. All lesions were treated effectively. Postoperatively, the patients improved significantly. Complications included transient lower cranial nerve paresis in three patients, meningitis in one patient, and a pseudomeningocele in two patients. All complications improved with therapy. We conclude that the extreme lateral approach offers excellent visualization and access with minimal neural retraction for treating these difficult lesions.
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Komotar RJ, Zacharia BE, McGovern RA, Sisti MB, Bruce JN, D'Ambrosio AL. Approaches to anterior and anterolateral foramen magnum lesions: A critical review. JOURNAL OF CRANIOVERTEBRAL JUNCTION AND SPINE 2011; 1:86-99. [PMID: 21572629 PMCID: PMC3075834 DOI: 10.4103/0974-8237.77672] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Foramen magnum (FM) lesions represent some of the most complex cases for the modern neurosurgeon because of their location near vital brainstem structures, the vertebral arteries, and lower cranial nerves. In particular, anterior or anterolaterally located FM tumors have traditionally been most difficult to resect with high morbidity and mortality resulting from approaches through the posterior midline or transorally. For many neurosurgeons, the far lateral, extreme lateral approach, and more recently, endoscopic endonasal approaches have become the preferred modern methods for the resection of anterior or anterolateral FM tumors. In this review, we examine both operative and non-operative approaches to FM tumors, including surgical anatomy, surgical technique, and indications for operative intervention in these complex cases. In addition, we compared outcomes from prior series.
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Schipper J, Spetzger U, Tatagiba M, Rosahl S, Neumann HPH, Boedeker CC, Maier W. Juxtacondylar approach in temporal paraganglioma surgery: when and why? Skull Base 2011; 19:43-7. [PMID: 19568341 DOI: 10.1055/s-0028-1103129] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
As it became clear that patients with paraganglioma (PGL) syndromes had a higher risk of multifocal tumors, we changed our surgical strategy to avoid the possibility of bilateral cranial nerve paralysis. The juxtacondylar approach offers advantages for some jugular foramen tumors, including types C and D temporal PGLs. This approach allows exposure of the jugular foramen without skeletonizing or transposing the facial nerve. It improves the surgeon's ability to distinguish between the pars vascularis and the pars nervosa at the jugular foramen, and it helps to save functioning of the lower cranial nerves. There is already considerable experience using the juxtacondylar approach for patients suffering from schwannomas and meningiomas involving the jugular foramen. Some limitations have been noted for using the juxtacondylar approach with jugular PGLs that are related to their vascular nature. In this article we demonstrate its use for the management of eight patients with locally advanced temporal PGLs and how it can be combined with an infratemporal fossa approach.
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Affiliation(s)
- Joerg Schipper
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, University of Freiburg, Germany
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Matsushima T, Kawashima M, Masuoka J, Mineta T, Inoue T. Transcondylar fossa (supracondylar transjugular tubercle) approach: anatomic basis for the approach, surgical procedures, and surgical experience. Skull Base 2011; 20:83-91. [PMID: 20808532 DOI: 10.1055/s-0029-1242193] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The authors clarify the anatomic basis and the usefulness of the transcondylar fossa approach (T-C-F A), in which the posterior portion of the jugular tubercle is removed extradurally through the condylar fossa with the atlanto-occipital joint intact. The authors first performed an anatomic study to identify the area to be removed using cadaveric specimens and then applied the T-C-F A to foramen magnum surgeries. The surgeries included clipping a vertebral artery-posterior inferior cerebellar artery aneurysm in 11 cases, microvascular decompression for glossopharyngeal neuralgia in 15 cases, and removing intradural foramen magnum tumors in 17 cases. Only the condylar fossa was removed, but the approach offered very good visualization of the lateral part of the foramen magnum and sufficient working space. These surgeries were performed safely without major complications. This skull base approach is minimally invasive and is not difficult. Therefore, it can be a standard approach for accessing intradural lesions of the foramen magnum. It can be combined with the transcerebellomedullary fissure approach from the lateral side and can also be easily changed to the transcondylar approach, if necessary.
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Wang J, Ou SW, Wang YJ, Wu AH, Wu PF, Wang YB. Microsurgical management of dumbbell C1 and C2 schwannomas via the far lateral approach. J Clin Neurosci 2011; 18:241-6. [DOI: 10.1016/j.jocn.2010.03.048] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2009] [Revised: 03/26/2010] [Accepted: 03/28/2010] [Indexed: 11/27/2022]
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Refai D, Shin JH, Iannotti C, Benzel EC. Dorsal approaches to intradural extramedullary tumors of the craniovertebral junction. JOURNAL OF CRANIOVERTEBRAL JUNCTION AND SPINE 2010; 1:49-54. [PMID: 20890415 PMCID: PMC2944856 DOI: 10.4103/0974-8237.65482] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Tumors of the craniovertebral junction (CVJ) pose significant challenges to cranial and spine surgeons. Familiarity with the complex anatomy and avoidance of injury to neurologic and vascular structures are essential to success. Multiple surgical approaches to address lesions at the CVJ have been promoted, including ventral and dorsal-based trajectories. However, optimal selection of the surgical vector to manage the pathology requires a firm understanding of the limitations and advantages of each approach. The selection of the best surgical trajectory must include several factors, such as obtaining the optimal exposure of the region of interest, avoiding injury to critical neurologic or vascular structures, identification of normal anatomical landmarks, the familiarity and comfort level of the surgeon to the approach, and the need for fixation. This review article focuses on dorsal approaches to the CVJ and the advantages and limitations in managing intradural extramedullary tumors.
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Affiliation(s)
- Daniel Refai
- Center for Spine Health, Department of Neurological Surgery, Cleveland Clinic, Cleveland, OH - 441 95, USA
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