Surgical Landmarks
Surgical Landmarks - Related Videos
04:47
Systematic Bronchoscopy: the Four Landmarks Approach
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Cited by 4 •
2023
Here, we present a protocol to navigate the bronchial maze in a structured manner, splitting the bronchoscopy into a stepwise approach-the four landmarks approach.
05:22
Systematic Endobronchial Ultrasound - The Six Landmarks Approach
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Cited by 1 •
2023
Endobronchial ultrasound-guided sampling using transbronchial needle aspiration plays a key role in staging and diagnosing lung cancer. We propose a systematic stepwise approach dividing the procedure into six landmarks that should be taught to new operators.
10:35
Microvascular Decompression: Salient Surgical Principles and Technical Nuances
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Cited by 13 •
2011
There are many available options for management of the patient with trigeminal neuralgia. Microvascular decompression, while the most invasive of all options, is also the most effective at achieving long term remission of symptoms. Video instruction on how to maximize efficacy and minimize complications with this procedure is described.
01:32
Pig Surgical Preparation and Postoperative Care
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2026
All animal procedures described here must be conducted in accordance with institutional animal ethics guidelines and approved by IACUC. All procedures must follow the principles of the 3Rs—Replacement, Reduction, and Refinement—and must be performed by trained personnel. Surgical Preparation and Physiological Monitoring This video provides an introductory overview of surgical preparation, intraoperative monitoring, and postoperative care in swine. It is intended to familiarize learners with key...
04:53
Surgical Management of Meatal Stenosis with Meatoplasty
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Cited by 13 •
2010
Meatoplasty, surgical management of meatal stenosis.
FAQs
Surgeons correlate visible features, including cranial sutures, cortical folds, and blood vessels, with deeper brain regions. This relationship provides an anatomical reference framework when the operative field exposes only part of the brain. Accurate correlation helps establish orientation, localize a target, and select a pathway that avoids nearby functional or otherwise critical tissue.
Each landmark type provides a different positional reference. Cranial sutures help relate the skull to the underlying brain, cortical folds support surface orientation, blood vessels identify important anatomical relationships, and ventricular structures provide deeper reference points. Using these features together is more informative than relying on one structure when anatomy is complex.
Anatomical landmarks provide direct visual and structural references during an operation, while imaging and neuronavigation contribute planned spatial information. Their combination allows surgeons to compare the exposed anatomy with the intended target and operative route. Intraoperative monitoring adds information about functional tissue, helping guide decisions when localization and tissue protection must occur simultaneously.
Application begins with operative planning and identification of relevant reference points. During surgery, visible cranial, cortical, vascular, or ventricular features are correlated with the intended brain region, target, and access route. The surgeon then uses those relationships for real-time orientation and localization, while imaging, neuronavigation, and monitoring can provide complementary guidance.
Surgical landmarks support several procedures identified in the source material, including tumor resection, vascular surgery, and electrode placement. In each setting, landmarks help relate the operative field to the target structure and surrounding tissue. Their use can support pathway selection and localization while reducing the risk of entering or disturbing functional brain areas.
In clinical neurosurgery, landmarks support planning, localization, and protection of functional brain regions. In neuroscience research, the same anatomical relationships help investigators orient electrode placement and relate observed structures to deeper brain regions. Their value lies in connecting visible anatomy with target locations, while imaging and monitoring provide additional context for interpreting procedures and outcomes.