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Chongqing Medicine ; (36): 4629-4632,4635, 2016.
Article in Chinese | WPRIM | ID: wpr-606701

ABSTRACT

Objective To conduct the anatomical observation and measurement on adult temporal bone labyrinth and internal auditory canal structures to accumulate the anatomical data and provide anatomical basis for clinical internal ear surgery.Methods Thirty sides(left 16 and right 14)of adult dry temporal bone labyrinth and internal auditory canal structures were anatomically observed and the related structures were measured.Results (1) The specimen observation:the vestibule was egg conical cavity,and angle between long axis and sagittal plane was about 33°.The floor of internal auditory canal were divided into four districts,which angle between the inferior surface and vestibule was about 90°,the connection between tractus spiralis foraminosus bone crest of cochlea area and inguinal ring of cochlear spiral canal was the same rotated laps.(2)The data measurement:the comparison of means in various measurement items had no statistical differences between the left side and right side(P>0.05);the comparison of mean length and crus distance had statistical differences among superior semicircular canal,posterior semicircular canal,lateral semicircular canal(P<0.05);the comparison of means had statistical difference among posterior semicircular canal and superior semicircular canal,lateral semicircular canal(P<0.05),but the comparison of means had no statistical difference between superior semicircular canal and lateral semicircular canal(P>0.05).Conclusion The means of various measurement items in bone labyrinth and internal auditory canal have no difference between the left side and right side;the comparison of length means:posterior semicircular canal>superior semicircular canal>lateral semicircular canal;the comparison of crus distance means:superior semicircular canal> lateral semicircular canal>posterior semicircular canal;the comparison of diameter means:posterior semicircular canal>superior and lateral semicircular canal,but the diameter has no difference between superior semicircular canal and lateral semicircular canal.

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