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Visocchi M, Signorelli F. Craniovertebral Junction Surgical Approaches: State of Art. Adv Tech Stand Neurosurg 2024; 50:295-305. [PMID: 38592535 DOI: 10.1007/978-3-031-53578-9_10] [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] [Indexed: 04/10/2024]
Abstract
Surgical approaches directed toward craniovertebral junction (CVJ) can be addressed to the ventral, dorsal, and lateral aspects through a variety of 360° surgical corridors Herein, we report features, advantages, and limits of the updated technical support in CVJ surgery in clinical setting and dissection laboratories enriched by our preliminary surgical results of the simultaneous application of O-arm intraoperative neuronavigation and imaging system along with the 3D-4K EX in TOA for the treatment of CVJ pathologies.In the past 4 years, eight patients harboring CVJ compressive pathologies underwent one-step combined anterior neurosurgical decompression and posterior instrumentation and fusion technique with the aid of exoscope and O-arm. In our equipped Cranio-Vertebral Junction Laboratory, we use fresh cadavers (and injected "head and neck" specimens) whose policy, protocols, and logistics have already been elucidated in previous works. Five fresh-frozen adult specimens were dissected adopting an FLA. In these specimens, a TOA was also performed, as well as a neuronavigation-assisted comparison between transoral and transnasal explorable distances.A complete decompression along with stable instrumentation and fusion of the CVJ was accomplished in all the cases at the maximum follow-up (mean: 25.3 months). In two cases, the O-arm navigation allowed the identification of residual compression that was not clearly visible using the microscope alone. In four cases, it was not possible to navigate C1 lateral masses and C2 isthmi due to the angled projection unfitting with the neuronavigation optical system, so misleading the surgeon and strongly suggesting changing surgical strategy intraoperatively. In another case (case 4), it was possible to navigate and perform both C1 lateral masses and C2 isthmi screwing, but the screw placement was suboptimal at the immediate postoperative radiological assessment. In this case, the hardware displacement occurred 2 months later requiring reoperation.
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Affiliation(s)
- Massimiliano Visocchi
- Institute of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University, Rome, Italy
| | - Francesco Signorelli
- Institute of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University, Rome, Italy.
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Broggi M, Zattra CM, Restelli F, Acerbi F, Seveso M, Devigili G, Schiariti M, Vetrano IG, Ferroli P, Broggi G. A Brief Explanation on Surgical Approaches for Treatment of Different Brain Tumors. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1405:689-714. [PMID: 37452959 DOI: 10.1007/978-3-031-23705-8_27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
The main goal of brain tumor surgery is to achieve gross total tumor resection without postoperative complications and permanent new deficits. However, when the lesion is located close or within eloquent brain areas, cranial nerves, and/or major brain vessels, it is imperative to balance the extent of resection with the risk of harming the patient, by following a so-called maximal safe resection philosophy. This view implies a shift from an approach-guided attitude, in which few standard surgical approaches are used to treat almost all intracranial tumors, to a pathology-guided one, with surgical approaches actually tailored to the specific tumor that has to be treated with specific dedicated pre- and intraoperative tools and techniques. In this chapter, the basic principles of the most commonly used neurosurgical approaches in brain tumors surgery are presented and discussed along with an overview on all available modern tools able to improve intraoperative visualization, extent of resection, and postoperative clinical outcome.
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Affiliation(s)
- Morgan Broggi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Costanza M Zattra
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Francesco Restelli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Francesco Acerbi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Mirella Seveso
- Neuroanesthesia and Neurointensive Care Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Grazia Devigili
- Neurological Unit 1, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Marco Schiariti
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Ignazio G Vetrano
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Paolo Ferroli
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Giovanni Broggi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy.
- Scientific Director, Fondazione I.E.N. Milano, Italy.
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Visocchi M, Signorelli F, Parrilla C, Paludetti G, Rigante M. Multidisciplinary approach to the craniovertebral junction. Historical insights, current and future perspectives in the neurosurgical and otorhinolaryngological alliance. ACTA ACUST UNITED AC 2021; 41:S51-S58. [PMID: 34060520 PMCID: PMC8172108 DOI: 10.14639/0392-100x-suppl.1-41-2021-05] [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] [Received: 11/19/2020] [Accepted: 01/22/2021] [Indexed: 11/23/2022]
Abstract
Historically considered as a nobody’s land, craniovertebral junction (CVJ) surgery or specialty recently gained high consideration as symbol of challenging surgery as well as selective top level qualifying surgery. The alliance between Neurosurgeons and Otorhinolaringologists has become stronger in the time. CVJ has unique anatomical bone and neurovascular structures architecture. It not only separates from the subaxial cervical spine but it also provides a special cranial flexion, extension, and axial rotation pattern. Stability is provided by a complex combination of osseous and ligamentous supports which allows a large degree of motion. The perfect knowledge of CVJ anatomy and physiology allows to better understand surgical procedures of the occiput, atlas and axis and the specific diseases that affect the region. Although many years passed since the beginning of this pioneering surgery, managing lesions situated in the anterior aspect of the CVJ still remains a challenging neurosurgical problem. Many studies are available in the literature so far aiming to examine the microsurgical anatomy of both the anterior and posterior extradural and intradural aspects of the CVJ as well as the differences in all the possible surgical exposures obtained by 360° approach philosophy. Herein we provide a short but quite complete at glance tour across the personal experience and publications and the more recent literature available in order to highlight where this alliance between Neurosurgeon and Otorhinolaringologist is mandatory, strongly advisable or unnecessary.
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Affiliation(s)
- Massimiliano Visocchi
- Institute of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.,Institute of Neurosurgery, Catholic University School of Medicine, Rome, Italy.,Craniovertebral Junction Operative Unit, Master II Degree, Cadaver Lab and Research Center on Craniocervical Junction Surgery, Catholic University School of Medicine, Rome, Italy
| | - Francesco Signorelli
- Institute of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Claudio Parrilla
- Otorhinolaryngology, Head and Neck Surgery, "A. Gemelli" Hospital Foundation IRCCS, Catholic University of the Sacred Heart, Rome, Italy
| | - Gaetano Paludetti
- Otorhinolaryngology, Head and Neck Surgery, "A. Gemelli" Hospital Foundation IRCCS, Catholic University of the Sacred Heart, Rome, Italy.,Craniovertebral Junction Operative Unit, Master II Degree, Cadaver Lab and Research Center on Craniocervical Junction Surgery, Catholic University School of Medicine, Rome, Italy
| | - Mario Rigante
- Otorhinolaryngology, Head and Neck Surgery, "A. Gemelli" Hospital Foundation IRCCS, Catholic University of the Sacred Heart, Rome, Italy.,Craniovertebral Junction Operative Unit, Master II Degree, Cadaver Lab and Research Center on Craniocervical Junction Surgery, Catholic University School of Medicine, Rome, Italy
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Signorelli F, Olivi A, De Giorgio F, Pascali VL, Visocchi M. A 360° Approach to the Craniovertebral Junction in a Cadaveric Laboratory Setting: Historical Insights, Current, and Future Perspectives in a Comparative Study. World Neurosurg 2020; 140:564-573. [PMID: 32797988 DOI: 10.1016/j.wneu.2020.04.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 04/07/2020] [Accepted: 04/09/2020] [Indexed: 01/07/2023]
Abstract
BACKGROUND We herein outline the experience matured in our equipped Cranio-Vertebral Junction Laboratory for anatomic dissection. METHODS An extreme lateral approach (ELA) was performed on 4 fresh cadavers and submandibular approach was performed on 5. An endoscope and navigation-assisted far lateral approach (FLA) was performed in 5 injected specimens. In these specimens, a transoral approach was also performed, as well as a neuronavigation-assisted comparison between transoral and transnasal explorable distances. RESULTS As calculated with neuronavigation, statistically significant differences both in the explored craniocaudal (P = 0.003) and lateral (P = 0.008) distances were observed between the transoral approach and endoscopic endonasal approach. In FLA, neuronavigation facilitated identification and partial removal of the occipital condyle; in one case, during endoscopic intradural exploration, tearing of the emerging roots of the 11th cranial nerve occurred. In ELA, the site where the accessory nerve pierces into the sternocleidomastoid muscle was found at a distance from the tip of the mastoid between 3 and 4 cm. CONCLUSIONS During dissections, as in the clinical setting, endoscope and image guidance give the surgeon a constant orientation, increasing the accuracy and the safety of the approach. Nonetheless, the encumbrance of the endoscope could represent a limit in deep and narrow corridors as those running across the craniovertebral junction, especially in "oblique" FLA and ELA, in which the surgical target is often hidden by a delicate tangle of nerves and vessels. Its use appears more suitable and safer in "straight" approaches as transoral and transnasal in which there are no neurovascular structures interposed.
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Affiliation(s)
- Francesco Signorelli
- Institute of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.
| | - Alessandro Olivi
- Institute of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy; Institute of Neurosurgery, Catholic University School of Medicine, Rome, Italy
| | - Fabio De Giorgio
- Institute of Public Health, Section of Legal Medicine, Catholic University School of Medicine, Rome, Italy
| | - Vincenzo Lorenzo Pascali
- Institute of Public Health, Section of Legal Medicine, Catholic University School of Medicine, Rome, Italy
| | - Massimiliano Visocchi
- Institute of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy; Institute of Neurosurgery, Catholic University School of Medicine, Rome, Italy; Craniovertebral Junction Operative Unit, Master II Degree and Research Center Craniocervical Junction Surgery, Catholic University School of Medicine, Rome, Italy
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