Editorial Manager(tm) for European Archives of Oto-rhino-laryngology and Head & Neck Manuscript Draft Transpetrosal Approach: an Anatomical Study of Temporal Bone Transpetrosal Approach: an Anatomical Study of Temporal Bone *blinded Manuscript Click Here to View Linked References
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چکیده
Background: Resection of the petrous temporal bone to various degrees provides different levels of access to lesions of the posterior fossa. However, precise distances of petrosal bone are not still clearly described due to the numerous variations of them which may lead to serious complications during transpetrosal surgeries. Objective: Our objective was to evaluate different distances of temporal bone in order to assess their variations and the possible correlations between them. Subjects and Methods: This anatomical study was performed on 60 temporal bones from 60 human cadavers in the years 2006 and 2007. All the bones contained an adequate portion of the petrous apex and attached fossa dura. Twelve landmarks were defined and 27 different distances were measured for each temporal bone using two-point caliper. Results: The less variation was observed in the distance between the origin of corda tympani and corda in pyramidal direction with the less variations in Z-score (2.95); whereas, the most variation was detected in the shortest horizontal distance between the sigmoid sinus and posterior wall of the external meatus (Z-score variation=6.71). There was a significant correlation between vertical intratemporal diameter of carotid in pyramidal direction and superior-inferior diameter of horizontal carotid canal (rPearson=0.500, P<0.001). Other significant correlations were also found between other distances. Conclusion: The variations of each distance were evaluated and many significant correlations were demonstrated between them which could potentially aid ENT specialists and neurosurgeons in order to approach more safely the fossas and anatomical landmarks during head and ear surgeries.
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تاریخ انتشار 2009