The Wheel-Shaped Composite Cartilage Graft for Type 1 Tympanoplasty: Comparison with Palisade and Island Cartilage...

This study aims to compare the graft success and hearing results of the palisade and island cartilage graft, with wheel-shaped composite cartilage graft (WsCCG) for type 1 tympanoplasty. The study was designed retrospectively. Only patients with conductive hearing loss and simple pars tensa perforation of the tympanic membrane were included in the study. Pure tone average (PTA), air-bone gap gain (ABG), word recognition score (WRS), ABG closure and grafts success were compared between the graft groups. Records of 111 patients were analyzed. The graft success rate was 89.7% for palisade cartilage graft (PCG, n = 39), 86.1% for island cartilage graft (ICG, n = 36), and 97.2% for wheel-shaped composite cartilage graft (WsCCG, n = 36) (p = 0.244). Average postoperative PTA and ABG values were significantly affected by the cartilage graft type, but WRS was not affected. (p = 0.005, 0.019, 0.306, respectively, One Way-Anova test). Post-Hoc LSD test showed a statistically significant decrease in PTA and ABG averages for WsCCG group compared to the ICG group (p = 0.004; CI%95 = 15.1-2.2 dB and p = 0.023; CI%95 = 8.2-0.4 dB, respectively). Postoperative PTA and ABG averages for WsCCG and PCG groups were similar (p = 0.069 and p = 0.053, respectively). In addition, while there were 2 (5.1%) retractions in the PCG group and 1 (2.7%)in the ICG group, there was no retraction in the WsCCG group. The WsCCG provided comparable results with classical reliable graft techniques (PCG and ICG) and may recommend as a more suitable graft due to hearing results and resistance against retraction.