Objectives: The present study was designed to detect the
value of CT imaging in assessment of aditus ad antrum patency
and to correlate the radiological findings with operative
findings.
Patients and Methods: This study was conducted on 40
patients with failed myringoplasty. All patients underwent
full history taking. complete clinical otorhinolaryngological
examination and preoperative laboratory investigations. The
patients were selected with the following criteria: Previous
myringoplasty without mastoidectomy, dry safe perforation
in pars tensa, intact ossicular chain, good Eustachian tube
(E.T) function and no cartilage graft in the previous operation.
CT scanning with 2mm slice thickness and 2mm intervals
was done preoperatively for all patients for assessment of the
tympanomastoid preumatization and condition of aditus. All
patients underwent cortical mastoidectomy operation with
underlay myringoplasty with tragal cartilage pericondrium
graft. Patients were examined with the use of an operating
microscope and otoscope weekly for two months till the ear
was completely healed. |
