INTRODUCTIONA common cause of otitis media is the permanent perforation of the tympanic membrane (TM). This situation may lead to problems such as hearing loss and frequent otorrhea in patients. First, Berthold (1) tried to surgically repair a TM perforation with a skin graft in 1878. Later, Zöllner (2) and Wulstein (3) identified materials that could be used as grafts and methods, respectively. Today, the temporalis muscle fascia, perichondrium, and cartilage with perichondrium are most commonly used as graft materials (4).The overall aim of tympanoplasty is to prevent infection and discharge in the middle ear and restore hearing by TM perforation repair. Depending on the pathology in the middle ear, this operation can be performed with or without mastoidectomy. Tympanoplasties are traditionally classified as medial (underlay) or lateral (overlay). The landmark for this classification is the annulus tympanicus (AT). The operation is named according to the placement of the graft medial or lateral to the AT.The aim of this study is to evaluate the results of overlay cartilage perichondrium composite graft tympanoplasty with the transcanal approach.
METHODSThis study was conducted by retrospectively examining the patient records. Ethics committee approval was obtained from the Haseki Training and Research Hospital (152/12.11.2014). The ages of patients ranged from 15 to 55 years. TM perforations of the operated patients were limited to a single quadrant. They had mild hearing loss and did not have otorrhea within the last 6 months. Each patient filled the required information form before the operation, and complications that may occur in the postoperative period were explained to them. Audiological tests and physical examination data were evaluated in the 6 th postoperative month.The operation was performed under general anesthesia. Tragal cartilage, covered on one side with the perichondrium, which is as large as the perforation and 0.5 mm at the thickest point was used as the graft material. The excess perichondrium was laid on the TM. Audiological tests and physical examinations were performed 6 months after the operation. Airway gains of the patients and air-bone gaps were evaluated by calculating the average of the hearing values of patients at 500 Hz, 1000 Hz, and 2000 Hz.
Statistical AnalysisStatistical analyses of the averages of pre-and postoperative airbone gap were assessed using the paired t-test.
RESULTSForty patients were included. Of these, 16 (40%) were females and 24 (60%) were males. Eighteen (45%) patients were operated in the right ear and 22 (55%) in the left ear. Post-surgery, the TM perforation was closed in 35 (87.5%) patients. The perforation could not be completely closed in 3 (7.5%) patients, but more than 50% closing occurred in the perforation in comparison to preoperative sizes. The perforation size did not change in 2 (5%) patients. Otorrhea occurred in the early postoperative period in these 2 patients, and the graft was discarded. An average of 9.4 dB (SD: ±5.20859) airway gain was...