Abstract：
The aim of this study was to introduce a new computer guided technique for debulking and contouring the craniofacial fibrous dysplasia involving the fronto-orbital and fronto-cranial regions. Computer-guided contouring was performed using a modified patient-specific surgical depth guide for six patients with craniofacial fibrous dysplasia involving the fronto-orbital and fronto-cranial regions. Virtual planning was performed to determine the desired amount of bone removal and construct the patient-specific surgical depth guide. Then, the guide was printed using rapid prototyping. In the surgical theatre, the guide was seated in position. Implant drills were inserted through the created depth holes according to the planned fixed depth to create depth holes. Finally, the bone in between the created holes was removed using cutting discs, bone chisels and surgical burs. Satisfaction with facial aesthetics was evaluated by the patients using a Likert scale, and by the surgeons using the Whitaker rating scale. The surgical procedures were uneventful for all the patients. All the patients were satisfied with the post-operative facial esthetics and categorized as category I Whitaker rating scale. Patient-specific surgical guide technique for recontouring of fronto-orbital and fronto-cranial fibrous dysplasia can be considered an accurate substitution technique that overcomes the drawbacks of the unpredictable conventional one. Further investigations are required.
摘要：
这项研究的目的是引入一种新的计算机引导技术，用于对涉及前眶和前颅区域的颅面纤维发育不良进行减积和轮廓化。使用改良的针对患者的手术深度指南对六名涉及前眶和前颅区域的颅面纤维发育不良患者进行了计算机引导的轮廓绘制。执行虚拟计划以确定所需的骨去除量并构建患者特异性手术深度导向器。然后，该指南是使用快速原型打印的。在手术室，导游坐在适当的位置。根据计划的固定深度通过所创建的深孔插入植入钻,以创建深孔。最后,使用切割盘去除所产生的孔之间的骨头，骨凿子和外科毛刺。患者使用李克特量表评估对面部美学的满意度，和外科医生使用惠特克评定量表。所有患者的外科手术都很顺利。所有患者均对术后面部美学满意，并归类为I类Whitaker评定量表。用于前眶和前颅纤维发育不良轮廓重建的针对患者的手术指导技术可以被认为是一种精确的替代技术，可以克服不可预测的常规技术的缺点。需要进一步调查。
