Related Experiment Videos
The superior orbital fissure: a microanatomical study
M Morard1, V Tcherekayev, N de Tribolet
1Service de Neurochirurgie, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
Neurosurgery
|December 1, 1994
Summary
Microsurgical anatomy of the superior orbital fissure (SOF) was studied. A recommended surgical approach from the cranial side provides access to the cranial nerves and vessels within the SOF.
Area of Science:
- Neurosurgery
- Anatomy
- Ophthalmology
Background:
- The superior orbital fissure (SOF) is a critical anatomical region connecting the orbit and cranial cavity.
- Understanding the microsurgical anatomy of the SOF is essential for neurosurgical and ophthalmological procedures.
- Previous approaches to SOF lesions often debated optimal surgical access.
Purpose of the Study:
- To elucidate the detailed microsurgical anatomy of the superior orbital fissure.
- To define a recommended surgical approach for accessing lesions within the SOF.
Main Methods:
- Microsurgical dissection of the SOF was performed on five adult cadavers.
- Vascular structures in three specimens were injected with latex for enhanced visualization.
- Detailed anatomical relationships of nerves and vessels within the SOF were documented.
Main Results:
- The SOF contains cranial nerves III, IV, VI, the ophthalmic division of V, and the superior orbital vein.
- The lateral rectus muscle tendons divide the SOF into superior and inferior compartments with distinct neurovascular contents.
- A recommended surgical approach involves frontotemporo-orbital craniotomy with specific bone resections and dural opening.
Conclusions:
- Detailed anatomical knowledge of the SOF is crucial for safe surgical dissection.
- A cranial-based surgical approach, as described, facilitates access to the SOF and its contents.
- This study provides a valuable anatomical reference for surgical planning involving the superior orbital fissure.