Application of computer-assisted design and manufacture technique in the treatment of condylar osteochondroma combined with jaw bone deformity: report of a case.

PURPOSE: To discuss the application of CAD/CAM technique in the treatment of condylar osteochondroma accompanying with oral-maxillofacial bone deformity. METHODS: Pre-operational planning of a patient with condylar osteochondroma was conducted, maxillary and mandibular bone deformities was performed with CAD technique (Surgicase CMF 5.0 based on CT data), including virtual tumor resection, virtual osteotomy, virtual occlusal plate/osteotomy template designing and post -operative simulation. RP technique was used to make occlusal plates and osteotomy templates. Postoperative CT scan was performed and merged with the operation plans to evaluate the accuracy. RESULTS: Postoperative CT showed the effect of the operation matched with the preoperative planning well. The face of the patient was symmetrical 6 months after operation, there was no sign of recurrence. CONCLUSIONS: The pre -operative application of CAD/CAM technique can improve the accuracy of the tumor resection of the condyle and the correction procedure of facial asymmetry, as well as saving operating time. Supported by Research Fund of Science and Technology Commission of Shanghai Municipality (08DZ2271100), Research Fund of Biomedicine Engineering of Shanghai Jiao Tong University (YG2009MS42) and Program for Innovative Research Team of Shanghai Municipal Education Commission. [ABSTRACT FROM AUTHOR]