Endoscopic perichondrium-cartilage H type technique for repairing chronic kidney-shaped perforations with 3 years of follow-up

Objective: The objective of this study was to evaluate graft outcomes and complications of endoscopic perichondrium-cartilage H type technique for repairing chronic kidney-shaped perforation with 3 years of follow-up. Material and methods: Adult patients with chronic kidney-shaped perforation underwent endoscopic perichondrium-cartilage H type technique. The graft outcomes and complications were evaluated at 36 months after surgery. Results: The total of 51 ears were included in this study. The mean operation time was 31.5 +/- 4.1 min. Residual perforation was seen in 2 patients, the graft success rate was 96.1 % (49/51) at postoperative 12 months. Granular myringitis was noted in 8.2 % (4/49) patients in 49 patients with graft success. The mean preoperative ABG was 23.6 +/- 3.7 dB, while the mean postoperative ABG postoperatively 12 months was 12.9 +/- 5.2 dB (P < 0.05), the functional success rate was 94.1 % (48/51). At postoperative 36 months, only 32 (62.7 %, 32/51) patients were followed up, while 19 (37.3 %, 19/51) patients lost followup. Of the 32 patients with followup of 36 months, the mean follow-up time was 38.2 +/- 7.1 (37-46) months, re-perforation was seen in one. All 32 patients performed the postoperative CT examination at last followup, CT revealed the well pneumatization of mastoids and middle ear. Conclusions: Endoscopic cartilage-perichondrium H type technique is an alternative method for repairing chronic kidney-shaped perforations, with a highly successful, short operation time, minimally invasive procedure, and no cholesteatoma.