TRANSCANAL ENDOSCOPİC TYPE 1 TYMPANOPLASTY; COMPARİSON OF THE ANATOMİCAL AND FUNCTİONAL SUCCESS OF TWO DİFFERENT GRAFTS

Materials and Methods: A total of 80 patients (48 females 32 males; median age 30,2 ± 6,9 years interval 24-52 years) who underwent a transcanal endoscopic type 1 tympanoplasty without tympanomeatal flap elevation were enrolled in the study. The patients were divided into two groups as temporal muscle fascia (Group A) and tragal cartilage perichondrium (Group B) according to the type of graft used. The groups were compared according to the results of 12th postoperative pure tone audiometry and to the status of the tympanic membrane.

Results: Graft retention success was 90% in group A, while group B was 92,5%. There was no statistically significant difference between the groups in terms of graft retention success (p = 0.412). Preoperative and postoperative air-bone gap (ABG) values did not differ statistically between group A and group B (p = 0.082 and p = 0.242). The postoperative ABG value showed a significant reduction in Group A and B compared to its respective value in the pre-operative period (p=0.001). The postoperative gain in the ABG value did not show a significant difference between Group A and B (p = 0.108).

Conclusion: The anatomical and functional results of the tragal cartilage perichondrium and temporal muscle fascia grafts in endoscopic tympanoplasty were found to be successful, but neither of them was superior to the other. Keywords : Endoscopic tympanoplasty, fascia, perichondrium, transcanal