The pterygoclival ligament: a novel landmark for localization of the internal carotid artery during the endoscopic endonasal approach

Journal of Neurosurgery
Ali Tayebi MeybodiMichael T Lawton

Abstract

The transpterygoid extension of the endoscopic endonasal approach provides exposure of the petrous apex, Meckel's cave, paraclival area, and the infratemporal fossa. Safe and efficient localization of the lacerum segment of the internal carotid artery (ICA) is a crucial part of such exposure. The aim of this study is to introduce a novel landmark for localization of the lacerum ICA. Ten cadaveric heads were prepared for transnasal endoscopic dissection. The floor of the sphenoid sinus was drilled to expose an extension of the pharyngobasilar fascia between the sphenoid floor and the pterygoid process (the pterygoclival ligament). Several features of the pterygoclival ligament were assessed. In addition, 31 dry skulls were studied to assess features of the bony groove harboring the pterygoclival ligament. The pterygoclival ligament was identified bilaterally during drilling of the sphenoid floor in all specimens. The ligament started a few millimeters posterior to the posterior end of the vomer alae and invariably extended posterolaterally and superiorly to blend into the fibrous tissue around the lacerum ICA. The mean length of the ligament was 10.5 ± 1.7 mm. The mean distance between the anterior end of the ligament and midlin...Continue Reading

References

Jan 22, 2003·Neurosurgery·Alessandra AlfieriManfred Tschabitscher
Nov 19, 2004·Surgical and Radiologic Anatomy : SRA·C Vacher, J-J Accioli de Vasconcellos
Mar 30, 2005·Neurosurgery·Luigi Maria CavalloManfred Tschabitscher
Jun 19, 2007·The Laryngoscope·Allan D VescanAmin B Kassam
Jul 12, 2007·American Journal of Rhinology·Islam R Herzallah, Roy R Casiano
Jan 5, 2008·Journal of Neurosurgery·Amin B KassamAlbert L Rhoton
Feb 12, 2008·Otolaryngologic Clinics of North America·Paul A GardnerRicardo L Carrau
Nov 4, 2008·Journal of Neurosurgery·Ossama Al-MeftySvetlana Pravdenkova
Jan 2, 2009·The Laryngoscope·Adam M ZanationAmin B Kassam
Jan 17, 2009·Surgical and Radiologic Anatomy : SRA·Aykut KarasuOssama Al-Mefty
Apr 24, 2009·Surgical Neurology·Paolo Cappabianca, Francesco Magro
May 7, 2009·Neurosurgery·Shigeyuki OsawaAmin B Kassam
May 13, 2009·Clinical and Experimental Otorhinolaryngology·Steve C Lee, Brent A Senior
Dec 22, 2009·Neurosurgery·Philip V TheodosopoulosLee A Zimmer
Jan 26, 2010·The Journal of Craniofacial Surgery·Bashar AbuzayedZiya Akar
Mar 11, 2010·ORL; Journal for Oto-rhino-laryngology and Its Related Specialties·Qiuhang ZhangHongchuan Guo
Oct 16, 2010·Neurosurgery Clinics of North America·Daniel M PrevedelloAmin B Kassam
Nov 26, 2010·Neurosurgery·Daniel M PrevedelloAmin B Kassam
Jan 19, 2012·The Laryngoscope·Felipe S G FortesLuiz U Sennes
Nov 23, 2012·The Journal of Craniofacial Surgery·Yiqun ZhangWei Li
Dec 22, 2012·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Ulas AktasNesrin Ugras
Sep 24, 2013·Neurosurgery·Takeshi FunakiAlbert L Rhoton
Jan 18, 2014·Journal of Neurological Surgery. Part B, Skull Base·Leon T LaiRichard J Harvey
Feb 18, 2014·Journal of Neurosurgery·Arnau BenetJ J González Sánchez
Aug 12, 2014·World Neurosurgery·Emmanuel JouanneauMoncef Berhouma
Sep 23, 2014·World Neurosurgery·Hélène CebulaJeffrey T Keller
Dec 17, 2014·World Neurosurgery·Eduardo de Arnaldo Silva VellutiniAldo Cassol Stamm
Dec 17, 2014·World Neurosurgery·Pornthep KasemsiriAmin B Kassam
Dec 17, 2014·World Neurosurgery·Danielle de LaraAmin B Kassam
Dec 17, 2014·World Neurosurgery·Domenico SolariPaolo Cappabianca
Nov 4, 2015·The Laryngoscope·Oliver Y ChinJean Anderson Eloy

❮ Previous
Next ❯

Methods Mentioned

BETA
dissections
dissection

Software Mentioned

iNtellect

Related Concepts

Related Feeds

Aneurysm

Aneurysms are outward distensions or bulges that occurs in a weakened wall of blood vessels. Discover the latest research on aneurysms here.