Three-dimensional computed tomography reveals different donor-site deformities in adult and growing microtia patients despite total subperichondrial costal cartilage harvest and donor-site reconstruction.

Abstract

Donor-site deformity may complicate autologous costal cartilage harvest for microtia reconstruction. This is reportedly prevented by total subperichondrial costal cartilage harvest, costochondral growth center preservation, donor-site reconstitution with morselized leftover costal cartilage, and perichondrial repair (Kawanabe-Nagata method). However, no quantitative assessment of preoperative versus postoperative thoracic morphology exists following use of this method.