Two-Stage Pediatric Ear Reconstruction Using Preserved Native Cartilage After a Dog Bite

Area of Science:

• Reconstructive surgery
• Plastic surgery
• Otolaryngology

Background:

• Auricular avulsion from dog bites presents a rare and complex reconstructive challenge.
• The high-energy trauma and unique anatomy of the outer ear result in highly variable injury patterns.
• Preserving native cartilage is crucial for successful reconstruction when possible, as grafts may not fully replicate complex ear contours.

Observation:

• A pediatric case of total auricular avulsion due to a dog bite was successfully reconstructed.
• The reconstruction utilized the patient's own preserved native ear cartilage.
• A two-stage technique involving prelaminated cartilage and skin grafting was employed.

Findings:

• The native cartilaginous framework of the avulsed ear segment was preserved and utilized for reconstruction.
• A two-stage technique, including posterior auricular pocket formation for cartilage lamination and subsequent skin grafting, proved effective.
• This method allowed for the recreation of the ear's complex grooves and ridges.

Implications:

• Preserving native cartilage in cases of traumatic auricular avulsion offers a viable option for reconstruction.
• The described two-stage technique can achieve cosmetically superior outcomes compared to traditional grafting methods.
• This approach holds promise for improving patient satisfaction in managing complex ear defects.