title: Does the sphenoid angle effect the operation strategy? Anatomical and radiological investigation.
abstract: OBJECTIVE
  The aim of our study is to suggest the sphenoid wing-lesser wing angulation     (SWA) importance during surgeries directed to this region.
  
  
  METHODS
  SWA on 40 skulls were measured bilaterally (n=80). The depth of the middle     cranial fossa (DMCF) at the level of the SWA was determined. The same     measurements were done on 40 randomly selected computerized tomography (CT)     scans bilaterally (n=80).
  
  
  RESULTS
  The specimens were classified into 3 groups     according the degree of SWA; Group-A, SWA was more than 130° (27%), Group-B, SWA     was 110-130° (43%) and Group-C, SWA was less than 110° (28%). MCF was measured     (mean) as 10.1 mm in Group-A, 6.4 mm in Group-B and 4.6 mm in Group-C. MCF was     increasing with the increase in SWA. CT scans were classified into same     procedure. Group-A was 26%, Group-B was 42% and Group-C was 31% fitting in the     relevant groups. The superior orbital fissure (SOF) was evaluated according to     the Sharma's classification.
  
  
  CONCLUSIONS
  We suggest that by the preoperative     evaluation of CT scans measurements the SWA, it is possible to estimate the MCF     and the type of SOF. This knowledge may be important for all surgeries requiring     removal of the sphenoid wing and these region pathologies.
authors.affiliation: Ankara University, Faculty of Medicine, Department of Neurosurgery, Ankara, Turkey. gokmenkahil@hotmail.com
authors.forename: Gokmen
authors.initials: G
authors.lastname: Kahilogullari
authors.forename: Aysun
authors.initials: A
authors.lastname: Uz
authors.forename: Umit
authors.initials: U
authors.lastname: Eroglu
authors.forename: Nihal
authors.initials: N
authors.lastname: Apaydin
authors.forename: Zeynep
authors.initials: Z
authors.lastname: Yesilirmak
authors.forename: Mustafa Kemal
authors.initials: MK
authors.lastname: Baskaya
authors.forename: Nihat
authors.initials: N
authors.lastname: Egemen
mesh_terms: D002102:Cadaver; D035262:Cranial Fossa, Anterior / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D019635:Neurosurgical Procedures / Q000379:methods*; D009915:Orbit / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D010347:Patient Care Planning; D011859:Radiography; D012016:Reference Values; D012886:Skull / Q000033:anatomy & histology; D013100:Sphenoid Bone / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*