Microsurgical Anatomy for Intraoperative Preservation of the Olfactory Bulb and Tract

CÖMERT A., UĞUR H. Ç., KAHILOĞULLARI G., Comert E., Elhan A., TEKDEMİR İ.

JOURNAL OF CRANIOFACIAL SURGERY, vol.22, no.3, pp.1080-1082, 2011 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 22 Issue: 3
  • Publication Date: 2011
  • Doi Number: 10.1097/scs.0b013e3182139884
  • Journal Name: JOURNAL OF CRANIOFACIAL SURGERY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1080-1082
  • Keywords: Olfactory bulb, olfactory tract, olfactory artery, anatomy, surgical implications, anosmia, COMMUNICATING ARTERY ANEURYSMS, PTERIONAL APPROACH, POSTOPERATIVE ANOSMIA, BIFRONTAL CRANIOTOMY, SURGICAL RELEVANCE, ANTERIOR, SURGERY, BASE, NERVE
  • Ankara University Affiliated: Yes

Abstract

Damage to the olfactory bulb and tract is a frequently described complication of brain surgery in the frontal region, and it seems to be influenced by the surgical approaches. Eighty cerebral hemispheres and 5 formalin-fixed cadavers filled with colored latex were used. Parameters were directly measured, and after olfactory bulb and tract were mobilized with careful dissections, retraction of the frontal lobe was noted. The anterior border of the olfactory bulb is 22.21 (SD, 5.45) mm posterior to the frontomarginal sulcus, and arachnoidal dissection should be performed parallel to olfactory structures using sharp instruments to allow early visualization. Overall mobilization of the olfactory bulb and tract as 29.3 (SD, 6.4) mm in length is possible without disrupting the structures and enables a greater degree of the frontal-lobe elevation window up to 13.1 (SD, 3.2) mm. Using the morphometric data and anatomic knowledge may prevent unwanted anosmia complication during surgical approaches.