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Oberman DZ, Rabelo NN, Correa JLA, Ajler P. Relationship of superior sagittal sinus with sagittal midline: A surgical application. Surg Neurol Int 2020; 11:309. [PMID: 33093986 PMCID: PMC7568091 DOI: 10.25259/sni_509_2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 08/28/2020] [Indexed: 11/19/2022] Open
Abstract
Background: Interhemispheric approach is widely used to surgical management of midline tumors and vascular lesion in and around the third ventricle. Complete exposure of the superior sagittal sinus to obtain adequate working space of midline lesion is difficult, because of the risk to inadvertent injury to the sinus and bridging veins, which may cause several neurological deficits. Understanding the SSS neuroanatomy and its relationships with external surgical landmarks avoid such complications. The objective of this study is to accurately describe the position of SSS and its displacement in relation with sagittal midline by magnetic resonance imaging. Methods: A retrospective cross-sectional, observational study was performed. Magnetic resonance image of 76 adult patients with no pathological imaging was analyzed. The position of the halfway between nasion and bregma, bregma, halfway between bregma and lambda, and lambda was performed. The width and the displacement of the superior sagittal sinus accordingly to the sagittal midline were assessed in those landmarks. Results: The mean width of superior sagittal sinus at halfway between nasion and bregma, bregma, halfway between bregma and lambda, and lambda was 5.62 ± 2.5, 6.5 ± 2.8, 7.4 ± 3.2, and 8.5 ± 2.1 mm, respectively, without gender discrepancy. The mean displacement according to the midline at those landmarks showed a statistically significant difference to the right side among sexes. Conclusion: In this study, we demonstrate that sagittal midline may approximate external location of the superior sagittal sinus. Our data showed that in the majority of the cases, the superior sagittal sinus is displaced to the right side of sagittal midline as far as 16.3 mm. The data we obtained provide useful information that suggest that neurosurgeons should use safety margin to perform burr holes and drillings at the sagittal midline.
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Affiliation(s)
| | | | | | - Pablo Ajler
- Department of Neurosurgery, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
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Patchana T, Zampella B, Berry JA, Lawandy S, Sweiss RB. Superior Sagittal Sinus: A Review of the History, Surgical Considerations, and Pathology. Cureus 2019; 11:e4597. [PMID: 31309022 PMCID: PMC6609282 DOI: 10.7759/cureus.4597] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
A systematic PubMed and Google Scholar search for studies related to the anatomy, history, surgical approaches, complications, and diseases of the superior sagittal sinus was performed. The purpose of this review is to elucidate some of the more recent advances of our understanding of this structure. One of the earliest anatomical landmarks to be described, the superior sagittal sinus (SSS, sinus sagittalis superior (Latin); "sagittalis" Latin for 'arrow' and "sinus" Latin for 'recess, bend, or bay') has been defined and redefined by the likes of Vesalius and Cushing. A review of the various methods of approaching pathology of the SSS is discussed, as well as the historical discovery of these methods. Disease states that were emphasized include invasion of the SSS by meningioma, as well as thrombosis and vascular malformations.
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Affiliation(s)
- Tye Patchana
- Neurosurgery, Riverside University Health System Medical Center, Moreno Valley, USA
| | - Bailey Zampella
- Neurosurgery, Riverside University Health System Medical Center, Moreno Valley, USA
| | - James A Berry
- Neurosurgery, Riverside University Health System Medical Center, Moreno Valley, USA
| | - Shokry Lawandy
- Neurosurgery, Riverside University Health System Medical Center, Moreno Valley, USA
| | - Raed B Sweiss
- Neurosurgery, Riverside University Health System Medical Center, Moreno Valley, USA
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Iyer RR, Wu A, Macmillan A, Musavi L, Cho R, Lopez J, Jallo GI, Dorafshar AH, Ahn ES. Use of computer-assisted design and manufacturing to localize dural venous sinuses during reconstructive surgery for craniosynostosis. Childs Nerv Syst 2018; 34:137-142. [PMID: 28921242 DOI: 10.1007/s00381-017-3601-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 09/10/2017] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Cranial vault remodeling surgery for craniosynostosis carries the potential risk of dural venous sinus injury given the extensive bony exposure. Identification of the dural venous sinuses can be challenging in patients with craniosynostosis given the lack of accurate surface-localizing landmarks. Computer-aided design and manufacturing (CAD/CAM) has allowed surgeons to pre-operatively plan these complex procedures in an effort to increase reconstructive efficiency. An added benefit of this technology is the ability to intraoperatively map the dural venous sinuses based on pre-operative imaging. We utilized CAD/CAM technology to intraoperatively map the dural venous sinuses for patients undergoing reconstructive surgery for craniosynostosis in an effort to prevent sinus injury, increase operative efficiency, and enhance patient safety. Here, we describe our experience utilizing this intraoperative technology in pediatric patients with craniosynostosis. METHODS We retrospectively reviewed the charts of children undergoing reconstructive surgery for craniosynostosis using CAD/CAM surgical planning guides at our institution between 2012 and 2016. Data collected included the following: age, gender, type of craniosynostosis, estimated blood loss, sagittal sinus deviation from the sagittal suture, peri-operative outcomes, and hospital length of stay. RESULTS Thirty-two patients underwent reconstructive cranial surgery for craniosynostosis, with a median age of 11 months (range, 7-160). Types of synostosis included metopic (6), unicoronal (6), sagittal (15), lambdoid (1), and multiple suture (4). Sagittal sinus deviation from the sagittal suture was maximal in unicoronal synostosis patients (10.2 ± 0.9 mm). All patients tolerated surgery well, and there were no occurrences of sagittal sinus, transverse sinus, or torcular injury. CONCLUSIONS The use of CAD/CAM technology allows for accurate intraoperative dural venous sinus localization during reconstructive surgery for craniosynostosis and enhances operative efficiency and surgeon confidence while minimizing the risk of patient morbidity.
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Affiliation(s)
- Rajiv R Iyer
- Division of Pediatric Neurosurgery, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Phipps 560A, Baltimore, MD, 21287, USA
| | - Adela Wu
- Division of Pediatric Neurosurgery, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Phipps 560A, Baltimore, MD, 21287, USA
| | - Alexandra Macmillan
- Department of Plastic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Leila Musavi
- Department of Plastic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Regina Cho
- Department of Plastic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Joseph Lopez
- Department of Plastic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - George I Jallo
- Division of Pediatric Neurosurgery, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Phipps 560A, Baltimore, MD, 21287, USA
| | - Amir H Dorafshar
- Department of Plastic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Edward S Ahn
- Division of Pediatric Neurosurgery, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Phipps 560A, Baltimore, MD, 21287, USA.
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