bicoronal incision
Pronunciation: BY-kor-oh-nal
Surgical approach through a scalp incision extending from ear to ear across the crown of the head.
Full Definition
A bicoronal incision is a wide scalp incision that extends across the vertex of the skull from one temporal region to the other, typically placed several centimeters behind the hairline to minimize visible scarring. This approach provides extensive exposure of the upper and middle facial skeleton, making it ideal for complex facial fracture repairs, craniosynostosis correction, and major reconstructive procedures. The incision allows access to the frontal bone, orbital roofs, nasal bones, and upper maxilla while maintaining the ability to raise periosteal flaps for bone grafting. Careful attention to anatomical landmarks is essential to avoid injury to the facial nerve branches and superficial temporal vessels.
Usage
Usage note: Distinguish from hemicoronal, which extends only halfway across the scalp.
In Context
- "A bicoronal incision was made to expose the fractured frontal bone and orbital roofs bilaterally." — operative report
- "The bicoronal approach provides excellent visualization but requires careful attention to facial nerve preservation." — surgical planning notes