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Comparison of different grafting techniques in type I tympanoplasty in cases of significant middle ear granulation
Jong Cheol Lee1, Seong Rok Lee, Jung Kwon Nam
1Department of Otorhinolaryngology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea.
Objective:
To assess anatomical and hearing results after different reconstruction methods of tympanic membrane in cases of severe middle ear granulation.
Study Design:
Retrospective review.
Setting:
Secondary care medical center.
Patients:
Forty patients with severe middle ear granulation were included.
Interventions:
Canal wall-up mastoidectomy with Type I tympanoplasty. Temporalis fascia was used in 22 patients, cartilage island flap was used in 10 patients, and cartilage palisade was used in 8 patients.
Main Outcome Measures:
Graft take, air-bone gap, and air-bone gap closure ratio of 50% or more.
Results:
In the fascia group, the graft take rate was 91%, whereas the graft take rate for the cartilage island group and the cartilage palisades group was 100% (p = 0.617). Mean ± SD preoperative air-bone gaps for the fascia, island flap, and cartilage palisades were 30 ± 9.4, 26 ± 11.7, and 25 ± 10.8 dB, respectively. Postoperative air-bone gaps were 17 ± 10.2, 14 ± 8.4, and 19 ± 7.5 dB, respectively, in the same order. The cartilage palisades group failed to show statistically significant difference between preoperative and postoperative air-bone gaps (p = 0.195). Air-bone gap closure ratio of 50% or more was found in 11 cases (50%) of the fascia group, in 5 cases (50%) of the island flap group, and in 1 case (13%) of the cartilage palisades group.
Conclusion:
Cartilage palisades showed reliable graft take but slightly poor hearing results. Thus, fascia or cartilage island grafting might be better for tympanoplasty in cases of severe middle ear granulation tissue.
