Ear Section

Ear
Section

     

• Backous
  DD, Minor LB,Aboujaoude ES,et al (Johns Hopkins Univ,
  Baltimore,Md)
  
  
  Relationship
  of the Utriculus and Sacculusto
  the Stapes Footplate: Anatomic
  Implications for 
  Sound and/or
  Pressure-induced Otolith
  Activation.
  
  Ann Otol Rhinol Laryngol
  108:548-533,1999.
  
     
  
  The relative 
  distances between
  structures in the othic capsule and the stapes
  footplate were examined by 130 
  human temporal bone
  sectioned in the vertical plane.Average mean
  distances  fom footplate to the utriculus and
  saccule were tacken in anterior, middle and
  posterior 3rd of the footplate. Important finding
  was of membranous connections extending from
  utriculus to footplate were detected in 26% of 
  temporal bones.These
  connections along with other anatomic factors
  like,hypermobility of stapes or dehiscence of bone
  within labyrinthine structure make patients
  susceptible to sound or pressure induced otolith
  activation thereby suggesting there may be different
  causes for Tullio phenomenon.
  
     
  
  
  These are very important to those  otologic surgeons who do stapedectomies and work within
  critical distances of 1-2mm to otholithic organs.
  This article thus is very helpful to clinician in
  description of the anatomic relationships and
  thereby avoiding potential complications.