A Novel and Easy Approach for Contouring Surgery in Patients With Craniofacial Fibrous Dysplasia.

Although the bone-shaving procedure is the optimal alternative treatment of craniofacial fibrous dysplasia affecting the maxilla and zygoma, it is difficult to determine the appropriate amount of bone to be removed. The authors therefore developed a novel method for bone shaving using three-dimensional printing technology on computed tomography (CT) scans and screws as a guide. In our method, we implanted screws of predetermined lengths into surgical sites and then performed a burring within the visual field. By using screws, the exact amount of bone could be removed, as determined preoperatively. Thus, the operation time was shorted and the method was less effort intensive. Moreover, this procedure had reduced risk of radiation exposure owing to frequent use of CT, and had a low cost. This simple new method is more precise and effective, and shows satisfactory cosmetic outcomes than those with current bone-shaving practices.