The objectives of this study were : To review the role of post-operative imaging in the assessement of surgical treatement, To describe the main causes of post operative failure of otosclerosis, To illustrate CT and MR features of some cases surgical failure of otosclerosis.
Otosclerosis is a primitive osteodystrophy of endochondral layer of the otic capsule.
It is responsible for conductive hearing loss and sometimes mixed hearing loss.
Clinical incidence varies from 0,1 to 2% worldwide.
its prevalence ranges from 0,4% to 0,8% (1). Its therapeutic management is most often the fate of the surgery which aim is usually to correct conductive component of deafness.
It is therefore necessary for functional surgery patient prognosis. A significant hearing...
Findings and procedure details
A/Procedure details This was a retrospective study,
performed in a tertiary referral center (Rabta hospital,
All patients having otosclerosis and undergoing middle ear surgery: Stapedectomy or Stapedotomy.
Characteristics of the prosthesis were noticed.
and radiological and surgical data were collected.Causes of surgical failure,
postoperative hearing results,
CT and MR finding were noticed. 1.The temporal bone CT Scan was performed in our institution,in the...
Several studies (3-7) examined the causes of failures found at the post operative CT scan.
Table 1 summarized their results (3,5,8-10). Table 1: Main causes of surgical failures according to the litteraturereview (p.
100) Han, and al. 1997 n=74 (8) Wiet, and al. 1997 n=1147 (9) Lesinski,
2002 n=279 (3) Betsch and al.
2003 n=73 (5) Lippy and al. 2003 (10) Displacement of prosthesis 17.5 45 81 37.1 58.1 Lysis/Erosion of uncus 43.2 23.6 31 8.5 - Progression of otosclerosis 24.3 10.5 13.5 7.1 -...
Ben Mabrouk ,
Mizouni Department: Radiology Department La Rabta Hospital-Tunis-Tunisia Correpondant author : Asma BEN MABROUK firstname.lastname@example.org +21698687096
Ben Amor NR,
Ben Gamra O.,
Mbarek Ch.,El Khedim A.
otospongiose: a propos de 149 cas.
Journal Tunisien d'ORL.
2013; 29. 2.
Anne-Sophie Rangheard KM-D,
Postoperative Complications in Otospongiosis: Usefulness of MR Imaging.
AJNR Am J Neuroradiol.
2001; 22:1171-8. 3. Lesinski SG.
Causes of conductive hearing loss after stapedectomy or stapedotomy: a prospective study of 279 consecutive surgical...