Chondro-perichondrial connection in middle ear surgery

Area of Science:

• Otolaryngology
• Regenerative Medicine
• Biomaterials in Surgery

Background:

• Tympanoplasty aims to restore hearing and conserve the ear.
• Challenges in obtaining organic tissues due to HIV risk have increased interest in synthetic alternatives.
• Autologous tissues offer a biocompatible option for reconstructive surgery.

Purpose of the Study:

• To evaluate the efficacy of a novel autologous cartilage and perichondrium graft, termed "butterfly", in tympanoplasty.
• To assess both the tympanoplastic (structural repair) and functional (hearing gain) outcomes of this surgical technique.

Main Methods:

• A prospective study involving 50 patients undergoing tympanoplasty using the "butterfly" graft.
• The graft was constructed from the patient's own cartilage and perichondrium.
• Tympanoplastic success was evaluated 18 months post-surgery, and functional hearing results were assessed 3 years post-surgery.

Main Results:

• Excellent tympanoplastic results: 86% good outcomes, 0% perforations, and resolution of aural discharges in 12% of cases.
• Significant functional hearing improvement: 72% of patients achieved a hearing gain of over 15 dB.
• Overall positive outcomes with minimal complications, demonstrating the viability of autologous grafts.

Conclusions:

• Autologous cartilage and perichondrium "butterfly" grafts provide a safe and effective option for tympanoplasty.
• This technique yields high rates of successful tympanic membrane reconstruction and meaningful hearing improvement.
• The use of autologous tissue circumvents risks associated with homografts and donor site morbidity.