Revision 10 for 'Pterygoid processes'All Revisions
The pterygoid processes are paired inferior structures of sphenoid bone. Each pterygoid process projects inferiorly from the junction of the body and greater wing of the sphenoid bone and bifurcates into a medial pterygoid plate and a lateral pterygoid plate. The spaces separated the medial and lateral plate are pterygoid fissure inferiorly and pterygoid fossa posterior-superiorly. The root of the pterygoid process forms the posterior wall of the pterygopalatine fossa.
Pterygoid plates are important in diagnosing midface fractures. In Le Fort classification of midface fracture, the involvement of pterygoid plates is necessary to confirm the diagnosis.