An anatomical study of the pterygospinous and pterygoalar bars and foramina – their clinical relevance

A Study on Bilateral Ossified Pterygospinous Ligament and Its Clinical Significance

“…Nayak et al observed 3.84% with incomplete pterygospinous ligament and 5.76% with complete pterygospinous bony bar out of 416 dry human s kulls of Indian origin 4 . Antonopoulou et al observed incompletely ossified pterygospinous ligaments in 2.5% skulls and completely ossified pterygospinous bridge bilaterally in 2% of the skulls by 3D reconstruction in a CT image 5 . Peker et al studied 452 adult dry crania and found completely ossified pterygospinous ligament in 5.5% of the skulls, In 14 out of 452 skulls (3.1%) complete pterygospinous bridges were bilateral 22 .…”

“…The complete ossification of pterygospinous ligament is known as the pterygospinous bar 5 . Partial or complete ossification of pterygospinous ligament seems to be a major cause of trigeminal neuralgia 4 , causing lingual numbness and pain associated with speech impairment 6 .…”

Anomalous Ossified Pterygospinous Ligament In Eastern Zone - A Case Study

“…11 Antonopoulou et al observed incompletely ossified pterygospinous ligaments in 2.5% skulls and completely ossified pterygospinous bridge bilaterally in 2% of the skulls by 3D reconstruction in a CT image. 12 Presence of ossified pterygospinous ligament may produce failure of anaesthesia during treatment of trigeminal neuralgia 13 , and difficulty in thermocoagulation of trigeminal ganglion. 14 According to Newton and Potts an ossified pterygospinous ligament can be an obstacle in a radiograpically guided trigeminal ganglion blockage.…”

Anatomical Analysis of the Abnormal Bone Outgrowths With Special Emphasis on Pterygoalar Bar and Its Crotaphitico Buccinatorius Foramen

“…Lateral to the interpterygoid fascia is another fibrous structure attached to the infratemporal surface of greater wing of the sphenoid and in the superior segment of the posterior edge of lateral pterygoid plate. Its superior edge becomes flat and forms an innominated ligament, described by Hyrtl in 1862 (Cited by Tebo) called pterygoalar ligament [2] which when it is ossified, enclose the pterygoalar foramen (porus crotaphitico-buccinatorius) [3]. Pterygoalar bar was named by Chouki and Hodes [4] to an ossified pterygoalar ligament.…”