Complications of Stapes Surgery

c****f · 发表于 2008-2-22 18:29

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Complications of Stapes Surgery
Samuel Rosen
1953 – first suggest mobilization of the stapes
Immediately improved hearing
Problem with re-fixation

c****f · 发表于 2008-2-22 18:30

John Shea
1956 – first to perform stapedectomy
Oval window vein graft
Nylon prosthesis from incus to oval window

c****f · 发表于 2008-2-22 18:31

Fenestration of footplate
Stapes superstructure removal
Prosthesis placement

c****f · 发表于 2008-2-22 18:33

Fenestration of footplate
Prosthesis placement
Stapes superstructure removal

c****f · 发表于 2008-2-22 18:34

Conductive Hearing Loss Mechanism: After Stapedotomy

c****f · 发表于 2008-2-22 18:34

Collagen tissue seal contracts
Prosthesis lifts out of stapedotomy
Prosthesis migrates to fixed stapes footplate

c****f · 发表于 2008-2-22 18:35

Conductive Hearing Loss Mechanism: After Stapedectomy
Collagen tissue seal contracts
Neomembrane lateralizes
Erosion of incus causing loosening of wire loop

c****f · 发表于 2008-2-22 18:36

Mechanism of Post-operative Perilymph Fistula: Stapedotomy
Incus medially displaced by contracture adhesions between incus and promontory
Prosthesis medializes into vestibule

c****f · 发表于 2008-2-22 18:37

Mechanism of Post-operative Perilymph Fistula: Stapedectomy
Prosthesis migration from center to edge of oval window
Vibration tears weaker shortened edge of membrane

c****f · 发表于 2008-2-22 18:38

Garrett Hauptman MD
Tomoko Makishima MD
University of Texas Medical Branch
Department of Otolaryngology
November 21, 2007

[耳部疾病] Complications of Stapes Surgery

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