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Virtual Surgical Planning Aids in Complex Facial Reconstructions
3D Models and Custom Hardware Help Make Reconstruction for Severe Defects More 'Predictable and Streamlined'

Arlington Heights, Ill. - Virtual surgical planning technologies give surgeons a powerful new tool for their most challenging facial reconstruction cases, reports a paper in the September issue of Plastic and Reconstructive Surgery®, the official medical journal of the American Society of Plastic Surgeons (ASPS).

"Use of virtual surgical planning allows for complex maxillofacial reconstruction with multiple simultaneous free flaps to be preformed reliably and successfully," according to the study by Dr. Adam Saad of Louisiana State University Health Sciences Center, New Orleans, and colleagues.

Virtual Planning Helps Guide Complex Reconstructions

Dr. Saad and colleagues report their experience with maxillofacial reconstruction in patients with severe facial defects. All patients had severe destruction and distortion of the facial structure, posing difficult surgical challenges with a high risk of complications.

Virtual surgical planning begins with a high-resolution 3D CT scan of the skull and facial defect, and of the donor site from which the surgeon will obtain bone and tissue flaps for use in reconstruction. The CT data are then used to "virtually restore" the patient's preinjury anatomy-including a computer simulation showing how multiple bone-containing flaps would be placed to restore the defect.

The virtual reconstruction is used to create a "stereolithic" model of the patient's skull, including the pieces needed to perform the reconstruction. Surgeons can use the model to create custom jigs for use in performing the necessary bone cuts, as well as pre-bent surgical plates.

Dr. Saad and coauthors used the virtual surgical planning system for reconstruction in 10 patients with severe facial defects, most commonly caused by gunshot wounds or severe radiation damage after cancer treatment. The reconstructions were highly complex and demanding-for example, requiring complete reconstruction of the upper (maxilla) or lower jaw (mandible).

High-Tech Planning May Pay Off by Making Surgery More Efficient

All procedures went smoothly, with no surgical complications. The 3D model helped the surgeon understand the various components needed for the reconstruction, and how they would all fit together. Using custom-made cutting jigs and pre-bent plates allowed surgeons to work more efficiently, potentially reducing operating time.

Follow-up CT scans showed "excellent contour" of the bone flaps used for reconstruction of the facial skeleton. All bone and tissue flaps were viable at three months' follow-up. Where reconstruction of the mandible was performed, functional jaw motion was restored-in some cases, allowing the patient to resume oral feeding.

After initial experience with virtual surgical planning for simpler reconstructions, the researchers evaluated its use for the most complex maxillofacial reconstructions. "Usage of this technology should allow for more precise estimates on required bony components for reconstruction as well as enhancing our ability to make exact osteotomies to better match the contour of the facial skeleton," they write. They also propose a set of criteria for appropriate use of virtual surgical planning.

Dr. Saad and coauthors believe that the technique will be even more efficient and effective as surgeons gain familiarity with the technology. Although virtual surgical planning carries some additional costs, the researchers think this may be offset by the ability to simplify complex reconstructions. "We do feel that no price tag can be assigned to predictability and streamlining," they add.

Plastic and Reconstructive Surgery® is published by Lippincott Williams & Wilkins, part of Wolters Kluwer Health.

About Plastic and Reconstructive Surgery

For more than 70 years, Plastic and Reconstructive Surgery® has been the one consistently excellent reference for every specialist who uses plastic surgery techniques or works in conjunction with a plastic surgeon. The official journal of the American Society of Plastic Surgeons, Plastic and Reconstructive Surgery® brings subscribers up-to-the-minute reports on the latest techniques and follow-up for all areas of plastic and reconstructive surgery, including breast reconstruction, experimental studies, maxillofacial reconstruction, hand and microsurgery, burn repair, and cosmetic surgery, as well as news on medico-legal issues.

About ASPS

The American Society of Plastic Surgeons (ASPS) is the world's largest organization of board-certified plastic surgeons. Representing more than 8,000 Member Surgeons, the Society is recognized as a leading authority and information source on aesthetic and reconstructive plastic surgery. ASPS comprises more than 93 percent of all board-certified plastic surgeons in the United States. Founded in 1931, the Society represents physicians certified by The American Board of Plastic Surgery or The Royal College of Physicians and Surgeons of Canada. ASPS advances quality care to plastic surgery patients by encouraging high standards of training, ethics, physician practice and research in plastic surgery.

About Wolters Kluwer

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