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Case Study – Cranial Bone Graft Rhinoplasty

 

Background: Rhinoplasty surgery often entails the need for grafts. Most commonly cartilage grafts from the septum or ear are used as the volume needs are low and it is helpful to have a convenient and anatomically close harvest site. But major nasal reconstruction may need much larger graft volumes for which the rib offers a near limitless amount.

But in some nasal reconstruction cases where other craniofacial work is being performed, the most convenient donor site is one in which it is already open…the skull. Split-thickness cranial bone grafts have a long history of use in facial reconstruction including for reconstruction of the nose.

In reality, cranial bone is not the best graft for use in the nose because it is rigid and has to be made straight by either burring or controlled bending through partial osteotomy cuts.  One must also be careful that it does not put a lot of pressure on the nasal tip skin to prevent soft tissue breakdown. But if careful graft shaping is done, as well as bone fixation if needed, successful outcomes can be obtained with its use.

Case Study: This young female has been involved in a motor vehicle accident and sustained multiple craniofacial fractures of the forehead and midface. While these fractures underwent primary repair she remained with numerous residual brow bone, orbital and nasal deformities.

Under general anesthesia she had her original coronal scalp incision reopened for exposure and cranial grafts harvested to rebuild the frontal sinus and right orbital floor. Medial canthoplasties were also performed from this approach to improve her traumatic telecanthus. Her nasal dorsal had been impacted inward giving her a saddle nose appearance. A long 4 cm cranial bone graft was harvested and reshaped to be straight by partial thickness osteotomies and sutures. The dorsal bone graft was secured by screw fixation at the frontonasal junction. It was combined with a septal columellar strut graft through an open rhinoplasty approach to ensure adequate nasal tip projection.

A satisfactory nasal profile was achieved with good tip projection. The bone grafts has maintained its volume and structural integrity at a there year followup.

Cranial bone is not a primary source for nasal reconstruction grafting due to the limitations of its rigid structure. But if open access to the skull is already present for other procedures, it can make be used successfully.

Highlights:

  1. Cranial bone is one secondary option for dorsal grafting in rhinoplasty.
  2. The curved nature of cranial bone requires graft bending techniques for a straight dorm.
  3. A dorsal bone graft often needs to be combined with a columellar strut for an L-shaped nasal reconstruction.

Dr. Barry Eppley

Indianapolis, Indiana


Dr. Barry EppleyDr. Barry Eppley

Dr. Barry Eppley is an extensively trained plastic and cosmetic surgeon with more than 20 years of surgical experience. He is both a licensed physician and dentist as well as double board-certified in both Plastic and Reconstructive Surgery and Oral and Maxillofacial Surgery. This training allows him to perform the most complex surgical procedures from cosmetic changes to the face and body to craniofacial surgery. Dr. Eppley has made extensive contributions to plastic surgery starting with the development of several advanced surgical techniques. He is a revered author, lecturer and educator in the field of plastic and cosmetic surgery.

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