Morphometric analysis of the medial opticocarotid recess and its anatomical relations relevant to the transsphenoidal endoscopic endonasal approaches

作者：Nunes Cristian Ferrareze^*; Prevedello Daniel Monte Serrat; Carrau Ricardo Luis; Pereira da Fonseca Clovis Orlando; Landeiro Jose Alberto

来源：Acta Neurochirurgica, 2016, 158(2): 319-324.

DOI：10.1007/s00701-015-2662-7

• Sphenoid bone
• Skull base
• Endoscopic surgery
• Transsphenoidal surgery
• Internal carotid artery

The medial opticocarotid recess (MOCR) is located in the posterior wall of the sphenoid sinus, medial to the junction of the optic canal (OC) and the carotid prominence (CP). There is controversy in the literature in relation to the presence of the MOCR and its constancy, which is relevant when approaching the skull base through an endoscopic route.
The morphometric relations of the MOCR with the surrounding structures were studied in 18 cadaveric specimens after endoscopic endonasal approach (EEA).
The distance between both MOCR was 11.06 +/- 1.14 mm; the distance between the MOCR and the lateral opticocarotid (LOCR) recess was 5.56 +/- A 0.85 mm; the distance between the MOCR and the suprasellar recess was 3.72 A +/- 0.49 mm; the angle between the MOCR plane and the OC 13.32 A +/- 2.30A degrees; the angle between the MOCR plane and the CP 13.50 A +/- 2.68A degrees and; the angle between the OC and the CP 26.81 A +/- 4.26A degrees. All measurements showed low variability, with low standard deviation and interquartile range. No relations were found between any of the measurements.
The MOCR may be used as a reference point for precise location of structures during EEA. Objective measurements may be especially useful in cases with distorted sphenoid bone anatomy.

• 出版日期2016-2