1
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Cicek C, Orhun Ö, Cevik OM, Rzayeva L, Güdük M, Usseli Mİ, Aksoy ME, Emel E, Pamir MN, Bozkurt B. Endoscopy-assisted high cervical anterolateral retropharyngeal approach to clivus: a cadaveric study. Front Surg 2024; 11:1397729. [PMID: 39104713 PMCID: PMC11298333 DOI: 10.3389/fsurg.2024.1397729] [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: 03/08/2024] [Accepted: 07/02/2024] [Indexed: 08/07/2024] Open
Abstract
Introduction The surgical management of pathologies involving the clivus and craniocervical junction has always been considered a complex procedure because of the deeply located surgical targets and the surrounding complex neural and vascular anatomical structures. The most commonly used approaches to reach this area are the transnasal, transoral, and transcervical approaches. Material and Methods This approach was performed unilaterally on five cadaver heads and bilaterally on one cadaver head. Results We described a modified endoscope-assisted high cervical anterolateral retropharyngeal approach in which each stage of the procedure was demonstrated on human cadavers in a step-by-step manner using endoscopic camera views. This approach was broken down into nine steps. The neurovascular structures encountered at each step and their relationships with each other are demonstrated. Discussion The advantages and disadvantages of our modified approach were compared to the conventional transcervical, transoral, and endoscopic endonasal approaches.
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Affiliation(s)
- Caner Cicek
- Department of Neurosurgery, Zonguldak State Hospital, Zonguldak, Türkiye
| | - Ömer Orhun
- Department of Neurosurgery, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye
| | - Orhun Mete Cevik
- Department of Neurosurgery, School of Medicine, Acibadem Mehmet Ali Aydınlar University, Istanbul, Türkiye
| | - Lala Rzayeva
- School of Medicine, Acıbadem Mehmet Ali Aydinlar University, Istanbul, Türkiye
| | - Mustafa Güdük
- Department of Neurosurgery, School of Medicine, Acibadem Mehmet Ali Aydınlar University, Istanbul, Türkiye
| | - Murat İmre Usseli
- Department of Neurosurgery, School of Medicine, Acibadem Mehmet Ali Aydınlar University, Istanbul, Türkiye
| | - Mehmet Emin Aksoy
- School of Medicine, Acıbadem Mehmet Ali Aydinlar University, Istanbul, Türkiye
| | - Erhan Emel
- Department of Neurosurgery, Bakirkoy Teaching and Research Hospital for Psychiatric and Nervous Diseases, University of Health Sciences, Istanbul, Türkiye
| | - M. Necmettin Pamir
- Department of Neurosurgery, School of Medicine, Acibadem Mehmet Ali Aydınlar University, Istanbul, Türkiye
| | - Baran Bozkurt
- Department of Neurosurgery, School of Medicine, Acibadem Mehmet Ali Aydınlar University, Istanbul, Türkiye
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2
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Maldonado J, Revuelta Barbero JM, Rodas A, Porto E, Agudelo-Arrieta M, Zohdy Y, Garzon-Muvdi T, Solares CA, Pradilla G. Endoscopic Endonasal Odontoidectomy for Upper Cervical Spine and Brainstem Decompression in a Patient With Goldenhar Syndrome: 2-Dimensional Operative Video. Oper Neurosurg (Hagerstown) 2024; 26:477-478. [PMID: 37994858 DOI: 10.1227/ons.0000000000001004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 09/08/2023] [Indexed: 11/24/2023] Open
Affiliation(s)
- Justin Maldonado
- Department of Neurosurgery, Emory University, Atlanta , Georgia , USA
| | - J Manuel Revuelta Barbero
- Department of Neurosurgery, Emory University, Atlanta , Georgia , USA
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta , Georgia , USA
| | - Alejandra Rodas
- Department of Otolaryngology, Emory University, Atlanta , Georgia , USA
| | - Edoardo Porto
- Department of Neurosurgery, Emory University, Atlanta , Georgia , USA
| | - Mariana Agudelo-Arrieta
- Department of Neurosurgery, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana, Bogota , Colombia
| | - Youssef Zohdy
- Department of Neurosurgery, Emory University, Atlanta , Georgia , USA
| | | | - C Arturo Solares
- Department of Otolaryngology, Emory University, Atlanta , Georgia , USA
| | - Gustavo Pradilla
- Department of Neurosurgery, Emory University, Atlanta , Georgia , USA
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3
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Agosti E, De Maria L, Mattogno PP, Della Pepa GM, D’Onofrio GF, Fiorindi A, Lauretti L, Olivi A, Fontanella MM, Doglietto F. Quantitative Anatomical Studies in Neurosurgery: A Systematic and Critical Review of Research Methods. Life (Basel) 2023; 13:1822. [PMID: 37763226 PMCID: PMC10532642 DOI: 10.3390/life13091822] [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: 07/10/2023] [Revised: 08/17/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND The anatomy laboratory can provide the ideal setting for the preclinical phase of neurosurgical research. Our purpose is to comprehensively and critically review the preclinical anatomical quantification methods used in cranial neurosurgery. METHODS A systematic review was conducted following the PRISMA guidelines. The PubMed, Ovid MEDLINE, and Ovid EMBASE databases were searched, yielding 1667 papers. A statistical analysis was performed using R. RESULTS The included studies were published from 1996 to 2023. The risk of bias assessment indicated high-quality studies. Target exposure was the most studied feature (81.7%), mainly with area quantification (64.9%). The surgical corridor was quantified in 60.9% of studies, more commonly with the quantification of the angle of view (60%). Neuronavigation-based methods benefit from quantifying the surgical pyramid features that define a cranial neurosurgical approach and allowing post-dissection data analyses. Direct measurements might diminish the error that is inherent to navigation methods and are useful to collect a small amount of data. CONCLUSION Quantifying neurosurgical approaches in the anatomy laboratory provides an objective assessment of the surgical corridor and target exposure. There is currently limited comparability among quantitative neurosurgical anatomy studies; sharing common research methods will provide comparable data that might also be investigated with artificial intelligence methods.
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Affiliation(s)
- Edoardo Agosti
- Division of Neurosurgery, Department of Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Piazzale Spedali Civili 1, 25121 Brescia, Italy; (E.A.); (A.F.); (M.M.F.)
| | - Lucio De Maria
- Division of Neurosurgery, Department of Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Piazzale Spedali Civili 1, 25121 Brescia, Italy; (E.A.); (A.F.); (M.M.F.)
- Division of Neurosurgery, Department of Clinical Neuroscience, Geneva University Hospitals (HUG), 1205 Geneva, Switzerland
| | - Pier Paolo Mattogno
- Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168 Rome, Italy; (P.P.M.); (G.M.D.P.); (L.L.); (A.O.); (F.D.)
| | - Giuseppe Maria Della Pepa
- Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168 Rome, Italy; (P.P.M.); (G.M.D.P.); (L.L.); (A.O.); (F.D.)
| | | | - Alessandro Fiorindi
- Division of Neurosurgery, Department of Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Piazzale Spedali Civili 1, 25121 Brescia, Italy; (E.A.); (A.F.); (M.M.F.)
| | - Liverana Lauretti
- Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168 Rome, Italy; (P.P.M.); (G.M.D.P.); (L.L.); (A.O.); (F.D.)
- Department of Neurosurgery, Università Cattolica del Sacro Cuore, 20123 Rome, Italy;
| | - Alessandro Olivi
- Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168 Rome, Italy; (P.P.M.); (G.M.D.P.); (L.L.); (A.O.); (F.D.)
- Department of Neurosurgery, Università Cattolica del Sacro Cuore, 20123 Rome, Italy;
| | - Marco Maria Fontanella
- Division of Neurosurgery, Department of Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Piazzale Spedali Civili 1, 25121 Brescia, Italy; (E.A.); (A.F.); (M.M.F.)
| | - Francesco Doglietto
- Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCSS, 00168 Rome, Italy; (P.P.M.); (G.M.D.P.); (L.L.); (A.O.); (F.D.)
- Department of Neurosurgery, Università Cattolica del Sacro Cuore, 20123 Rome, Italy;
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Pennington Z, Westbroek EM, Lo SFL, Sciubba DM. Surgical Approaches to Tumors of the Occipito-Cervical, Subaxial Cervical, and Cervicothoracic Spine: An Algorithm for Standard versus Extended Anterior Cervical Access. World Neurosurg 2021; 156:e41-e56. [PMID: 34508912 DOI: 10.1016/j.wneu.2021.08.121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To propose a surgical approach algorithm for the tumors of the cervicothoracic spine. METHODS All patients operated for vertebral column tumors involving the occipito-cervicothoracic spine were reviewed. Oncologic characteristics and surgical approach were gathered. Approach was classified by the use of staging and trajectory (posterior, transnasal, transoral, transmandibular, transcervical, transsternal). Angle of attack was defined for the occipitocervical junction tumor as the angle inscribed by the inferior mandibular plane and line connecting the superior tumor pole and mandibular angle. For lesions extending below the thoracic inlet, angle of attack was that inscribed by the plane of the thoracic inlet and the line connecting the jugular notch and inferior tumor pole. RESULTS In total, 115 patients were included (mean age 56.7 years, 64 [56%] male, average size 26.5 cm3, 39 [34%] primary tumors). Sixty-nine (60%) of patients had single-stage procedures (57 [49.6%] posterior-only, 12 [10.4%] anterior-only), 35 (30.4%) had 2-stage procedures, and 11 (9.6%) had 3- or 4-stage approaches. Lesions requiring a combined transmandibular-transcervical approach all involved the C2 and C3 levels and had a significantly steeper angle of attack (42.5 ± 9.5 vs. 6.1 ± 13.3°; P = 0.01) and greater superior tumor extent above the inferior plane of the mandible (3.69 ± 2.18 vs. 0.33 ± 0.78; P = 0.002). Lateral tumor extent, tumor size, nor inferior angle of attack differed significantly between approach groups. CONCLUSIONS Here, we present a preliminary decision-making algorithm for the management of vertebral column tumors of the cervicothoracic spine. Based on this single-center experience, we suggest which patients, assessed via a combination of tumor histology and regional anatomy, may benefit from extended anterior surgical access.
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Affiliation(s)
- Zach Pennington
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Erick M Westbroek
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sheng-Fu Larry Lo
- Department of Neurosurgery, Zucker School of Medicine at Hofstra, Long Island Jewish Medical Center and North Shore University Hospital, Northwell Health, Manhasset, New York, USA
| | - Daniel M Sciubba
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Department of Neurosurgery, Zucker School of Medicine at Hofstra, Long Island Jewish Medical Center and North Shore University Hospital, Northwell Health, Manhasset, New York, USA.
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Vigo V, Pastor-Escartín F, Doniz-Gonzalez A, Quilis-Quesada V, Capilla-Guasch P, González-Darder JM, De Bonis P, Fernandez-Miranda JC. The Smith-Robinson Approach to the Subaxial Cervical Spine: A Stepwise Microsurgical Technique Using Volumetric Models From Anatomic Dissections. Oper Neurosurg (Hagerstown) 2020; 20:83-90. [PMID: 32864701 DOI: 10.1093/ons/opaa265] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 06/18/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The Smith-Robinson1 approach (SRA) is the most widely used route to access the anterior cervical spine. Although several authors have described this approach, there is a lack of the stepwise anatomic description of this operative technique. With the advent of new technologies in neuroanatomy education, such as volumetric models (VMs), the understanding of the spatial relation of the different neurovascular structures can be simplified. OBJECTIVE To describe the anatomy of the SRA through the creation of VMs of anatomic dissections. METHODS A total of 4 postmortem heads and a cervical replica were used to perform and record the SRA approach to the C4-C5 level. The most relevant steps and anatomy of the SRA were recorded using photogrammetry to construct VM. RESULTS The SRA was divided into 6 major steps: positioning, incision of the skin, platysma, and muscle dissection with and without submandibular gland eversion and after microdiscectomy with cage positioning. Anatomic model of the cervical spine and anterior neck multilayer dissection was also integrated to improve the spatial relation of the different structures. CONCLUSION In this study, we review the different steps of the classic SRA and its variations to different cervical levels. The VMs presented allow clear visualization of the 360-degree anatomy of this approach. This new way of representing surgical anatomy can be valuable resources for education and surgical planning.
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Affiliation(s)
- Vera Vigo
- The Stanford Neurosurgical Training and Innovation Center, Stanford University, Palo Alto, California.,Neurosurgery Unit, Ferrara University Hospital, Department of Morphology Surgery and Experimental Medicine, Ferrara, Italy
| | - Félix Pastor-Escartín
- The Stanford Neurosurgical Training and Innovation Center, Stanford University, Palo Alto, California.,Department of Neurosurgery, Hospital Clínico Universitario de Valencia, Valencia, Spain.,Microneurosurgery Laboratory, Department of Anatomy and Human Embriology, University of Valencia, Valencia, Spain
| | - Ayoze Doniz-Gonzalez
- The Stanford Neurosurgical Training and Innovation Center, Stanford University, Palo Alto, California
| | - Vicent Quilis-Quesada
- Department of Neurosurgery, Hospital Clínico Universitario de Valencia, Valencia, Spain.,Microneurosurgery Laboratory, Department of Anatomy and Human Embriology, University of Valencia, Valencia, Spain.,College of Medicine and Science, Mayo Clinic, Jacksonville, Florida
| | - Pau Capilla-Guasch
- Department of Neurosurgery, Hospital Clínico Universitario de Valencia, Valencia, Spain.,Microneurosurgery Laboratory, Department of Anatomy and Human Embriology, University of Valencia, Valencia, Spain
| | - José Manuel González-Darder
- Department of Neurosurgery, Hospital Clínico Universitario de Valencia, Valencia, Spain.,Microneurosurgery Laboratory, Department of Anatomy and Human Embriology, University of Valencia, Valencia, Spain
| | - Pasquale De Bonis
- Neurosurgery Unit, Ferrara University Hospital, Department of Morphology Surgery and Experimental Medicine, Ferrara, Italy
| | - Juan Carlos Fernandez-Miranda
- The Stanford Neurosurgical Training and Innovation Center, Stanford University, Palo Alto, California.,Department of Neurological Surgery, Stanford University, Palo Alto, California
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6
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Yeh MY, Huang WC, Wu JC, Kuo CH, Chang HK, Tu TH, Chang PY, Yen YS, Cheng H. Suture Repair in Endoscopic Surgery for Craniovertebral Junction. Neurospine 2019; 16:257-266. [PMID: 31261465 PMCID: PMC6603818 DOI: 10.14245/ns.1938174.087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 06/12/2019] [Indexed: 11/25/2022] Open
Abstract
Objective Endoscopic approaches to the craniovertebral junction (CVJ) have been established as viable and effective surgical treatments in the past decade. One of the major complications is leakage of the cerebrospinal fluid (CSF). This study aimed to investigate the efficacy and feasibility of suture closure at the nasopharyngeal mucosa upon durotomy.
Methods A series of consecutive patients who underwent different endoscopic approaches to the CVJ were retrospectively reviewed. The pathologies, surgical corridors, neurological and functional outcomes, radiological evaluations, and complications were analyzed. Different strategies of repair for the intraoperative CSF leakage were described and compared.
Results A total of 22 patients covering 13 years were analyzed. There were 12, 2, and 8 patients who underwent transnasal, transoral, and combined approaches, respectively. There were 8 patients (36.4%) who experienced intraoperative CSF leakage, and were grouped into 2: 4 in the nonsuture (NS) group and 4 in the suture-repaired (SR) group. The NS group had 3 (75%) persistent CSF leakages postoperation that caused 1 mortality, whereas patients of the SR group had only 1 minor CSF rhinorrhea that healed spontaneously within days.
Conclusion In this series of 22 patients who required anterior endoscopic resection of pathologies at the CVJ, there was 1 (4.5%) serious complication related to CSF leakage. For patients who had no durotomy, the mucosal incision at the nasopharynx usually healed rapidly and there were few procedure-related complications. For patients with intraoperative CSF leakage, suture closure was technically challenging but could significantly lower the risks of postoperative complications.
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Affiliation(s)
- Mei-Yin Yeh
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Wen-Cheng Huang
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Jau-Ching Wu
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chao-Hung Kuo
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Biomedical and Engineering, National Yang-Ming University, Taipei, Taiwan
| | - Hsuan-Kan Chang
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Tsung-Hsi Tu
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Taiwan International Graduate Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan
| | - Peng-Yuan Chang
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Tao-Yuan General Hospital, Ministry of Health and Welfare, Taoyuan City, Taiwan
| | - Yu-Shu Yen
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Henrich Cheng
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan
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7
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Salle H, Cavalcanti Mendes GDA, Gantois C, Lerat J, Aldahak N, Caire F. Endoscopic Submandibular Retropharyngeal Approach to the Craniocervical Junction and Clivus: an Anatomic Study. World Neurosurg 2017; 106:266-276. [DOI: 10.1016/j.wneu.2017.06.162] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 06/25/2017] [Accepted: 06/28/2017] [Indexed: 10/19/2022]
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8
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Eloy JA, Vazquez A, Marchiano E, Baredes S, Liu JK. Variations of mucosal-sparing septectomy for endonasal approach to the craniocervical junction. Laryngoscope 2016; 126:2220-5. [PMID: 26891223 DOI: 10.1002/lary.25858] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 11/23/2015] [Accepted: 12/10/2015] [Indexed: 01/19/2023]
Abstract
OBJECTIVES/HYPOTHESIS Recent advances in surgical techniques have rendered the craniocervical junction (CCJ) accessible transnasally. Endoscopic endonasal transclival and transodontoid approaches are routinely performed in leading skull base centers. Usually, these approaches involve a posterior bony and mucosal septectomy, which may compromise the vascularized pedicled nasoseptal flap (PNSF), a robust reconstructive option for repair of large skull base defects. With the possibility of an intraoperative cerebrospinal fluid leak and the reported success of the PNSF for repair of these defects, preserving the integrity of the PNSF is beneficial during the endoscopic endonasal approach to the CCJ. We describe three new variations/refinements of the endoscopic endonasal approach to the CCJ that preserve the mucosal integrity of the posterior nasal septum and PNSF. METHODS Photo and video documentation of cadaveric dissections. RESULTS The steps required for the different variations in approaching the CCJ are demonstrated. These three options are: 1) nonopposing Killian incisions with submucosal elevation of PNSFs laterally under the inferior turbinates (the PNSFs are retracted laterally and left attached superiorly onto the nasal septum and laterally under the inferior turbinate); 2) bilateral non-opposing PNSFs tucked beneath their respective middle turbinate or into the sphenoid sinus; and 3) a hybrid approach combining option 1 performed on one side and option 2 on the contralateral side. All three options allowed for a mucosal-sparing septectomy to provide ample access to the CCJ. CONCLUSION These variations/refinements of the mucosal-sparing approach to the CCJ allowed adequate surgical access with sufficient maneuverability while preserving both PNSFs. LEVEL OF EVIDENCE NA. Laryngoscope, 126:2220-2225, 2016.
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Affiliation(s)
- Jean Anderson Eloy
- Department of Otolaryngology-Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, U.S.A.. .,Center for Skull Base and Pituitary Surgery, Neurological Institute of New Jersey, Rutgers New Jersey Medical School, Newark, New Jersey, U.S.A.. .,Department of Neurological Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, U.S.A.. .,Department of Ophthalmology and Visual Science, Rutgers New Jersey Medical School, Newark, New Jersey, U.S.A..
| | - Alejandro Vazquez
- Department of Otolaryngology-Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, U.S.A
| | - Emily Marchiano
- Department of Otolaryngology-Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, U.S.A
| | - Soly Baredes
- Department of Otolaryngology-Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, U.S.A.,Center for Skull Base and Pituitary Surgery, Neurological Institute of New Jersey, Rutgers New Jersey Medical School, Newark, New Jersey, U.S.A
| | - James K Liu
- Department of Otolaryngology-Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, U.S.A.,Center for Skull Base and Pituitary Surgery, Neurological Institute of New Jersey, Rutgers New Jersey Medical School, Newark, New Jersey, U.S.A.,Department of Neurological Surgery, Rutgers New Jersey Medical School, Newark, New Jersey, U.S.A
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9
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Quantification and comparison of neurosurgical approaches in the preclinical setting: literature review. Neurosurg Rev 2016; 39:357-68. [PMID: 26782812 DOI: 10.1007/s10143-015-0694-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 03/25/2015] [Accepted: 06/27/2015] [Indexed: 12/14/2022]
Abstract
There is a growing awareness of the need for evidence-based surgery and of the issues that are specific to research in surgery. Well-conducted anatomical studies can represent the first, preclinical step for evidence-based surgical innovation and evaluation. In the last two decades, various reports have quantified and compared neurosurgical approaches in the anatomy laboratory using different methods and technology. The aim of this study was to critically review these papers. A PubMed and Scopus search was performed to select articles that quantified and compared different neurosurgical approaches in the preclinical setting. The basic characteristics that anatomically define a surgical approach were defined. Each study was analyzed for measured features and quantification method and technique. Ninety-nine papers, published from 1990 to 2013, were included in this review. A heterogeneous use of terms to define the features of a surgical approach was evident. Different methods to study these features have been reported; they are generally based on quantification of distances, angles, and areas. Measuring tools have evolved from the simple ruler to frameless stereotactic devices. The reported methods have each specific advantages and limits; a common limitation is the lack of 3D visualization and surgical volume quantification. There is a need for a uniform nomenclature in anatomical studies. Frameless stereotactic devices provide a powerful tool for anatomical studies. Volume quantification and 3D visualization of the surgical approach is not provided with most available methods.
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10
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Eloy JA, Vazquez A, Mady LJ, Patel CR, Goldstein IM, Liu JK. Mucosal-sparing posterior septectomy for endoscopic endonasal approach to the craniocervical junction. Am J Otolaryngol 2015; 36:342-6. [PMID: 25582640 DOI: 10.1016/j.amjoto.2014.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 12/05/2014] [Accepted: 12/21/2014] [Indexed: 11/16/2022]
Abstract
Recent technological advances and developments in surgical technique have made the craniocervical junction (CCJ) accessible through the transnasal surgical corridor. Endoscopic endonasal transclival and transodontoid approaches have been previously described in the literature. Traditionally, these approaches entail a posterior bony and mucosal septectomy. This posterior bony and mucosal septectomy can compromise the integrity of the posterior septum and damage the vascularized pedicled nasoseptal flap (PNSF), a robust reconstructive option. With the possibility of an intraoperative cerebrospinal fluid (CSF) leak and the reported success of the PNSF for repair of these defects, preserving the integrity of the PNSF is beneficial during the endoscopic endonasal approach to the CCJ. Here, we present a new variation which preserves the mucosal integrity of the posterior nasal septum and PNSF. This mucosal-sparing variation of the traditional endoscopic endonasal transclival and transodontoid approaches allows for the preservation of posterior mucosal nasoseptal integrity, and salvages a reconstructive option for future usage. This is accomplished at no expense to visualization, surgical access, or maneuverability.
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Affiliation(s)
- Jean Anderson Eloy
- Department of Otolaryngology - Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, NJ; Department of Neurological Surgery, Rutgers New Jersey Medical School, Newark, NJ; Center for Skull Base and Pituitary Surgery, Neurological Institute of New Jersey, Rutgers New Jersey Medical School, Newark, NJ.
| | - Alejandro Vazquez
- Department of Otolaryngology - Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, NJ
| | - Leila J Mady
- Department of Otolaryngology - Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, NJ
| | - Chirag R Patel
- Department of Otolaryngology - Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, NJ
| | - Ira M Goldstein
- Department of Neurological Surgery, Rutgers New Jersey Medical School, Newark, NJ
| | - James K Liu
- Department of Otolaryngology - Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, NJ; Department of Neurological Surgery, Rutgers New Jersey Medical School, Newark, NJ; Center for Skull Base and Pituitary Surgery, Neurological Institute of New Jersey, Rutgers New Jersey Medical School, Newark, NJ
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11
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Anatomical features of skull base and oral cavity: a pilot study to determine the accessibility of the sella by transoral robotic-assisted surgery. Neurosurg Rev 2015; 38:723-30. [PMID: 25924605 DOI: 10.1007/s10143-015-0635-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Accepted: 01/19/2015] [Indexed: 10/23/2022]
Abstract
The role of transoral robotic surgery (TORS) in the skull base emerges and represents the natural progression toward miniinvasive resections in confined spaces. The accessibility of the sella via TORS has been recently described on fresh human cadavers. An anatomic study is mandatory to know if this approach would be feasible in the majority of patients regardless of their oral morphological features. From 30 skull base CT scans from patients who were asked to open their mouth as wide as they can, we measured specific dimensions of the oral cavity and the skull base, such as length of the palate, mouth opening and distance from the sella to the palate. All data were acquired on a sagittal midline plane and on a 25° rotation plane, which simulated the axis of the robotic instruments. Looking at the projection of the dental palatine line on the sella, we studied possible predictive factors of sellar accessibility and tried to bring objective data for surgical feasibility. We also proposed an angle α to study the working angle at the skull base. We observed that the maximal mouth opening was a good predictive factor of sellar accessibility by TORS (p < 0.05). The mouth aperture threshold value for a good sensitivity, over 80 %, was comparable to the mean value of mouth opening in our series, 38.9 and 39.4 mm respectively. Moreover, we showed a statistically significant increase of the working angle α at the skull base comparing the lateral access to the midline one (p < 0.05). This seemed to quantitatively demonstrate that the robotic arms placed at the labial commissure of the mouth can reach the sella. From these anatomical features and previous cadaveric dissections, we assume that TORS may be feasible on a majority of patients to remove pituitary adenomas.
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Exploring the safety range via the transoral approach to the craniovertebral junction. J Craniofac Surg 2014; 25:1473-5. [PMID: 24914754 DOI: 10.1097/scs.0000000000000569] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Surgeries via the transoral approach are widely used to deal with lesions near the craniovertebral junction. For this approach, the pharyngeal tubercle is an important landmark to identify the midline. The foramen lacerum, another important anatomic area where some crucial structures pass, is close to the pharyngeal tubercle. In the current study, we measured relevant distances and angles on 120 adults without brain diseases to estimate the safety range of the transoral approach. Distances between the pharyngeal tubercle and the foramen lacerum were expressed as mean (SD) and 95% confidence interval. Angles between the straight lines, which pass through the pharyngeal tubercle and the foramen lacerum, and the sagittal plane, as well as the horizontal plane, were also presented as mean (SD) and 95% confidence interval. As regards the 95% confidence intervals of the angles and the distances, which were used to define the safety range, no differences were observed between the right side and the left side. During such surgeries, if the midline is defined as a datum line, it is less likely for surgeons to destroy adjacent structures when moving within 36.30 degrees on the sagittal plane and 45.00 degrees on the horizontal plane once they find the pharyngeal tubercle. It is also safe to move within 16.20 mm from the pharyngeal tubercle. With these data, we have successfully defined the safety range of the surgery, which may help operators choose proper instruments in surgery and avoid injuries to important structures. Moreover, operators may use these data to position the pharyngeal tubercle so as not to deviate from the midline.
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Choudhri O, Mindea SA, Feroze A, Soudry E, Chang SD, Nayak JV. Experience with intraoperative navigation and imaging during endoscopic transnasal spinal approaches to the foramen magnum and odontoid. Neurosurg Focus 2014; 36:E4. [DOI: 10.3171/2014.1.focus13533] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Object
In this study the authors share their experience using intraoperative spinal navigation and imaging for endoscopic transnasal approaches to the odontoid in 5 patients undergoing C1–2 surgery for basilar invagination at Stanford Hospital and Clinics from 2010 to 2013.
Methods
Of these 5 patients undergoing C1–2 surgery for basilar invagination, 4 underwent a 2-tiered anterior C1–2 resection with posterior occipitocervical fusion during a first stage surgery, followed by endoscopic endonasal odontoidectomy in a separate setting. Intraoperative stereotactic navigation was performed using a surgical navigation system in all cases. Navigation accuracy, characterized as target registration error, ranged between 0.8 mm and 2 mm, with an average of 1.2 mm. Intraoperative imaging using a CT scanner was also performed in 2 patients.
Results
Endoscopic decompression of the brainstem was achieved in all patients, and no intraoperative complications were encountered. All patients were extubated within 24 hours after surgery and were able to swallow within 48 hours. After appropriate initial reconstruction of the defect at the craniocervical junction, no postoperative CSF leakage, arterial injury, or need for reoperation was encountered; 1 patient developed mild postoperative velopharyngeal insufficiency that resolved by the 6-month follow-up evaluation. There were no deaths and no patients required tracheostomy placement. The average inpatient stay after surgery varied between 72 and 96 hours, without extended intensive care unit stays for any patient.
Conclusions
Technologies such as intraoperative CT scanning and merged MRI/CT can provide the surgeon with detailed, virtual real-time information about the extent of complex endoscopic vertebral segment resection and brainstem decompression and lessens the prospect of revision or secondary procedures in this challenging surgical corridor. Moreover, patients experience limited morbidity and can tolerate early oral intake after transnasal endoscopic odontoidectomy. Essential to the successful undertaking of these endoscopic adventures is 1) an understanding of the endoscopic nasal, skull base, and neurovascular anatomy; 2) advanced and extended-length instrumentation including navigation; and 3) a team approach between experienced rhinologists and spine surgeons comfortable with endoscopic skull base techniques
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Affiliation(s)
| | | | | | - Ethan Soudry
- 2Otolaryngology–Head & Neck Surgery, Stanford University Medical Center, Stanford, California
| | | | - Jayakar V. Nayak
- 2Otolaryngology–Head & Neck Surgery, Stanford University Medical Center, Stanford, California
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Abstract
Abstract
BACKGROUND:
Transoral surgery may be used to approach pathologies at the craniocervical junction. However, the need for this approach has decreased over the past few decades.
OBJECTIVE:
To assess the outcome and complications of transoral surgery and extended transoral approaches at a single UK center between 1980 and 2011.
METHODS:
A retrospective review was performed of 495 ventral midline operations (between1980 and 2004) and prospective review of 38 operations (2004-2011) in a total of 479 patients. Trends in surgery and factors associated with good or bad outcome were assessed over this 30-year period.
RESULTS:
Of 533 operations, the most frequently performed surgeries were simple transoral surgery (321 operations), transoral surgery with splitting of the palate (107 operations), open-door maxillotomy (58 operations), and mandibulotomy (11 operations). Since the 1990s, there has been a steady decrease in the number of operations performed, mainly due to the decrease in the number of patients with rheumatoid arthritis presenting for surgery. The incidence of craniocervical junction tumors remained constant. The number of complications was significantly associated with the preoperative neurological status, and more complications were seen in myelopathic rheumatoid patients as well as a greater trend in congenital basilar invagination. The rates of pharyngeal infection (0.6%) and cerebrospinal fluid leak (0.3%) for standard transoral surgery were extremely low.
CONCLUSION:
The number of transoral and associated operations has decreased over time. Transoral surgery is now mainly indicated for ventral midline tumors such as chordomas. Transnasal endoscopic techniques show promise, but a major advantage of standard transoral surgery is the low cerebrospinal fluid leak and infection rates.
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Affiliation(s)
- David Choi
- Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, United Kingdom
| | - Hugh Alan Crockard
- Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, London, United Kingdom
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