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OSSICULAR RECONSTRUCTION
Sasan Dabiri, M.D.
Assistant Professor
Department of ORL-HNS
Amir Alam Hospital - TUMS
CLASSIFICATION
Wullstein classified the middle ear operations as types I through V, based on
concepts of sound transformation at OW and sound protection of RW
A modified version of Wullstein's classification for tympanoplasty (1990):
o Type 1: Repair of TM without altering the Ossicular system
o Type 2: Repair of TM & Ossicular chain with restoring Lever mechanism
o Type 3: Repair of TM with direct Transduction from TM to Stapes
o Type 4: Repair of TM with direct Connection of TM in mobile foot plate
o Type 5: Repair of TM with direct Connection of TM in fixed foot plate
Horst Ludwig Wullstein
German ENT Surgeon
1906 - 1987
TYPE 2 TYMPANOPLASTY
Preserving Lever mechanism
Reconstruction with:
o Synthetic Prosthesis
o Bone Strut
o Bone Cement
TYPE 3 TYMPANOPLASTY
o Stapes Columella
Direct connection between
Tympanic Membrane &
Capitulum of Stapes
TYPE 3 TYMPANOPLASTY
o Stapes Columella
o Minor Columella
TYPE 3 TYMPANOPLASTY
o Stapes Columella
o Minor Columella
 Interposition
TYPE 3 TYMPANOPLASTY
o Stapes Columella
o Minor Columella
 Interposition
TYPE 3 TYMPANOPLASTY
o Stapes Columella
o Minor Columella
 Interposition
 Inposition
TYPE 3 TYMPANOPLASTY
o Stapes Columella
o Minor Columella
 Synthetic: PORP
 Biomaterials
TYPE 3 TYMPANOPLASTY
o Stapes Columella
o Minor Columella
o Major Columella
 Synthetic: TORP
 Biomaterials (Incus TORP)
TYPE 4 TYMPANOPLASTY TYPE 5 TYMPANOPLASTY
o Major Columella
REFERENCES
 Nadol Jr. JB, McKenna MJ. Surgery of the ear and temporal bone, 2nd edition, 2005,
Lippincut Williams & Wilkins, Philadelphia, USA
 Tos M. Manual of middle ear surgery – volume 1, 1st edition, 1993, Thieme Medical
Publishers, New York, USA
 http://de.wikipedia.org/wiki/Horst_Ludwig_Wullstein (last accessed: May 2015)
 http://imglisting.com/ear-bone-disease.html (last accessed: May 2015)
 http://www.bornwithcholesteatoma.net/prosthetic-bone-devices/ (last accessed: May 2015)
THANKS FOR YOUR ATTENTION

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Ossicular reconstruction

  • 1. OSSICULAR RECONSTRUCTION Sasan Dabiri, M.D. Assistant Professor Department of ORL-HNS Amir Alam Hospital - TUMS
  • 2. CLASSIFICATION Wullstein classified the middle ear operations as types I through V, based on concepts of sound transformation at OW and sound protection of RW A modified version of Wullstein's classification for tympanoplasty (1990): o Type 1: Repair of TM without altering the Ossicular system o Type 2: Repair of TM & Ossicular chain with restoring Lever mechanism o Type 3: Repair of TM with direct Transduction from TM to Stapes o Type 4: Repair of TM with direct Connection of TM in mobile foot plate o Type 5: Repair of TM with direct Connection of TM in fixed foot plate Horst Ludwig Wullstein German ENT Surgeon 1906 - 1987
  • 3. TYPE 2 TYMPANOPLASTY Preserving Lever mechanism Reconstruction with: o Synthetic Prosthesis o Bone Strut o Bone Cement
  • 4. TYPE 3 TYMPANOPLASTY o Stapes Columella Direct connection between Tympanic Membrane & Capitulum of Stapes
  • 5. TYPE 3 TYMPANOPLASTY o Stapes Columella o Minor Columella
  • 6. TYPE 3 TYMPANOPLASTY o Stapes Columella o Minor Columella  Interposition
  • 7. TYPE 3 TYMPANOPLASTY o Stapes Columella o Minor Columella  Interposition
  • 8. TYPE 3 TYMPANOPLASTY o Stapes Columella o Minor Columella  Interposition  Inposition
  • 9. TYPE 3 TYMPANOPLASTY o Stapes Columella o Minor Columella  Synthetic: PORP  Biomaterials
  • 10. TYPE 3 TYMPANOPLASTY o Stapes Columella o Minor Columella o Major Columella  Synthetic: TORP  Biomaterials (Incus TORP)
  • 11. TYPE 4 TYMPANOPLASTY TYPE 5 TYMPANOPLASTY o Major Columella
  • 12. REFERENCES  Nadol Jr. JB, McKenna MJ. Surgery of the ear and temporal bone, 2nd edition, 2005, Lippincut Williams & Wilkins, Philadelphia, USA  Tos M. Manual of middle ear surgery – volume 1, 1st edition, 1993, Thieme Medical Publishers, New York, USA  http://de.wikipedia.org/wiki/Horst_Ludwig_Wullstein (last accessed: May 2015)  http://imglisting.com/ear-bone-disease.html (last accessed: May 2015)  http://www.bornwithcholesteatoma.net/prosthetic-bone-devices/ (last accessed: May 2015)
  • 13. THANKS FOR YOUR ATTENTION