Objective: To analyze the impact of different perforation sizes requiring different sizes of
cartilage on the anatomical and functional outcome after tympanoplasty.
Methods: Through this prospective non-controlled, non-randomized study, 50 patients underwent
cartilage type 1 tympanoplasty (20 females and 30 males), with a mean age of 19.3
years. According to size of perforation, patients were subdivided into three groups, Group I had
perforation >50% of tympanic membrane area, in Group II patients the perforations were 25---50%
of tympanic membrane area, and in Group III the perforations were
≤25% of tympanic membrane.
All patients had pre and postoperative Pure Tone Average and Air Bone Gap frequencies
(0.5, 1, 2, 4 kHz). All patients were followed up at least 12 months after operation.
Results: The anatomical success rate among all patients was 92%, all groups showed statistical
significant improvement between pre and postoperative air bone gap, no significant correlation
between size of cartilage graft and degree of air bone gap improvement was noticed among
the three groups.
Conclusion: Size of a cartilage graft has no impact on degree of hearing improvement or
anatomical success rate after tympanoplasty.