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Computer-aided 3-D simulation and prediction of craniofacial surgery: a new approach
S Girod1, M Teschner, U Schrell
1Plastic and Reconstructive Surgery and National Biocomputation Center, Stanford University, CA 94305-6605, USA. sgirod@stanford.edu
Background:
In plastic and reconstructive craniofacial surgery, careful preoperative planning is essential. In complex cases of craniofacial synostosis, rapid prototyping models are used to simulate the surgery and reduce operating time. Recently, 3-D CT model surgery has been introduced for presurgical planning and prediction of the postoperative result.
Objective:
For simulation of craniofacial surgery a computer-based system was developed that allows visualization and manipulation of CT-data using computer graphics techniques. Surgical procedures in all areas of the bony skull can be performed interactively.
Results:
The case of a child with scaphocephalus is presented. Surgery is planned using the craniofacial surgery simulator described above.
Conclusion:
The computer-based interactive surgery simulation systems presented here allow precise visualization of craniofacial surgery. The accurate computer-aided 3-D simulation of bone displacements is also the prerequisite for transfer of the simulated surgery using a navigation system for surgery. Thus the preoperatively planned procedure could be transferred directly to the operating table.