Fabrication of a three-dimensional autogenous costal cartilage framework in auricular reconstruction: experience with 250 cases of Asian lobule-type microtia.

BACKGROUND

Ear reconstruction is the necessary choice for patients with congenital lobule microtia. The best results are still obtained by autogenous cartilage ear reconstruction. We developed a three-dimensional autogenous costal cartilage framework for auricular reconstruction with the purpose of achieving a new auricle of high fidelity.

METHODS

The patient's sixth to eighth rib cartilages were harvested as auricular framework materials, which were divided into three laminates for carving fine anatomic structures. By connecting and fixing, a three-dimensional auricular framework with a concha, helix, antihelix, triangular fossa, and navicular fossa could be used for the auricular reconstruction.

RESULTS

The results obtained were considered satisfactory with vivid individual appearances and neat stable structures. Six frameworks were exposed or modified due to hematoma, infection, or cutaneous necrosis.

CONCLUSIONS

With a three-dimensional auricular framework, the minute anatomic structures cited above make the external ear silhouette more vivid.