Surgical Anatomy of Infratemporal Fossa
- 1. Boundaries of Infratemporal Fossa
- 2. Contents of Infratemporal Fossa
- 3. Temporalis muscle
- 4. Lateral Pterygiod Muscle
- 5. Relations of Lateral Pterygiod Muscle
- 6. Medial Pterygiod Muscle
- 7. Ligaments
- 8. Neurovasculature of Infratemporal fossa
- 9. Venous Plexus
- 10. Communications of Infratemporal Fossa
- 11. Apporaches for Infratemporal Fossa
- 12. TRANSORAL APPROACH
- 13. TRANSANTRAL APPROACH
- 14. TRANSPALATAL APPROACH
- 15. TRANSMAXILLARY APPROACH
- 16. EXTENDED MAXILLECTOMY APPROACH
- 17. TRANSMANDIBULAR APPROACH
- 18. MAXILLARY SWING
- 19. Transzygomatic approach
- 20. Fisch(1984) infratemporal fossa approach
- 21. Le Fort I osteotomy approach
- 22. COMBINATION OF APPROACHES
- 23. Combined infratemporal & PCF approach
- 24. References -
The Infratemporal Fossa (fossa infratemporalis; zygomatic fossa) – The infratemporal fossa is an irregularly shaped cavity, situated below and medial to the zygomatic arch. It is an anatomic space of great importance to neurological surgeons
specializing in skull base surgery. Multiple neural and vascular structures enter & exit the infratemporal fossa via foramina in the skull base​1,2​.
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The infratemporal fossa is the space located deep to the ramus of the mandible. The fossa is bounded anteriorly by the posterior surface of the maxilla and posteriorly by the styloid apparatus, carotid sheath and deep part of the parotid gland. Medially lies the lateral pterygoid plate and the superior constrictor muscle of the pharynx. Laterally lies the ramus of the mandible. The roof is formed by the infratemporal surface of the greater wing of the sphenoid. The infratemporal fossa has no anatomical floor, being continuous with tissue spaces in the neck.
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