Auricular deformity correction with simultaneous reconstruction of the conchal bowl using autologous ear cartilage for "flat ear": A novel surgical technique.

Backgrounds: "Flat ear" is a subtype of Grade II conchal-type microtia characterized by severely underdeveloped conchal bowl. Traditional surgical techniques often rely on autologous costal cartilage, which poses several risks and complications. This study aimed to introduce a novel surgical technique using autologous ear cartilage in auricular deformity correction surgery with simultaneous conchal bowl reconstruction for "flat ear."

Methods: A total of 19 patients were involved in this single-center, retrospective cohort study. All patients underwent the described surgical technique. Data were collected preoperatively, immediately after the surgery, and at the last follow-up, including auricular length, width, perimeter, and conchal bowl depth. Patient satisfaction was assessed using the Visual Analog Scale (VAS).

Results: The study included 12 males and 7 females, with an average age of 10.67 ± 3.86 years. Postoperative results showed significant improvements in auricular measurements, with the affected ear achieving near symmetry with the normal ear. The mean conchal bowl depth was restored from a preoperative 4.33 ± 1.78 mm to 17.32 ± 1.28 mm postoperatively. VAS scores for patient satisfaction increased significantly from 1.44 ± 0.92 preoperatively to 7.72 ± 1.49 postoperatively, with stability observed at the last follow-up.

Conclusion: The novel technique offers a promising alternative to traditional costal cartilage-based auricular deformity correction surgery, providing excellent aesthetic outcomes and high patient satisfaction. This approach may expand treatment options for patients with "flat ear" and related auricular deformities, with reduced invasiveness and potential for future auditory rehabilitation.