Abstract
Background
The supraorbital rim often interferes with the required upward movement of the instruments for resection of large frontal-lobe tumours through a classic supraorbital craniotomy. Here, we present the expanded trans/supraorbital approach to overcome these limitations.
Methods
After an eyebrow skin incision, a one-piece bone flap was created incorporating the orbital rim and roof. Basal extension of the craniotomy allowed for a better intracranial visualisation with improved manoeuvrability and angulation of the instruments without using brain retraction.
Conclusions
This approach poses a feasible alternative to large frontal craniotomies for frontal-lobe tumours, for which a regular supraorbital craniotomy is insufficient.
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References
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Conflicts of interest
Prof. Dr. med. R. Reisch is a consultant to Karl Storz.
Additional information
Key points
1. Removal of the orbital rim facilitates manoeuvrability towards rostro-cranial aspects of the pathology.
2. Even extended lesions within the frontal lobe can be reached without brain retraction.
3. Tumours expanding to the frontal base are optimal as they can be accessed where they reach the surface.
4. To avoid herniation, use of total intravenous anaesthesia and application of mannitol and/or cortisone is recommended.
5. Early CSF release may increase the working space and also prevent herniation.
6. Correct positioning leads to additional gravitational retraction.
7. Approach-related trauma is minimal.
8. No damage to intraorbital structures occurred.
9. Cosmetic results are satisfactory.
10. This approach is a feasible alternative to extended frontal craniotomies.
Electronic supplementary material
Below is the link to the electronic supplementary material.
“How I do it—the trans/supraorbital approach” illustrates the principal steps of this approach for the resection of frontal lobe tumours. The video focuses on the approach itself, as well as closure to achieve optimal cosmetic results, rather than the resection of a frontal lobe pathology. (MP4 339347 kb)
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Hickmann, AK., Gaida, BJ. & Reisch, R. How I do it: The expanded trans/supraorbital approach for large space-occupying lesions of the anterior fossa. Acta Neurochir 159, 881–887 (2017). https://doi.org/10.1007/s00701-017-3082-7
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DOI: https://doi.org/10.1007/s00701-017-3082-7