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目的:探讨口腔颌面锥形束CT(CBCT)在髁突骨折诊断及治疗中的应用。方法:回顾分析西安交通大学口腔医院口腔颌面外科自2010年1月～2012年6月诊治的髁突骨折42例(59侧),每例患者术前均行CBCT检查。其中有28例(32侧)在CBCT检查之前已行曲面断层全景片检查,17例(25侧)已行螺旋CT检查。结果:2侧骨折经曲面断层颌全景片检查后漏诊,漏诊率6.25%;螺旋CT和CBCT检查无误诊和漏诊,均可以确诊髁突骨折,并明确骨折部位及分型。42例(59侧)髁突骨折中,髁头(囊内)骨折13侧,髁颈骨折27侧,髁突下骨折19侧。13侧囊内骨折中,A型7侧,B型4侧,C型0侧,M型2侧。PDA分类,Ⅰ型28侧,Ⅱ型11侧,Ⅲ型20侧。结论:对于髁突骨折的诊断,CBCT是一种简单可靠的影像学技术,并可以明确骨折类型,对其治疗具有重要的指导意义。
Objective: To investigate the application of oral and maxillofacial cone beam computed tomography (CBCT) in the diagnosis and treatment of condylar fractures. Methods: Forty-two cases (59 sides) of condylar fractures diagnosed and treated by Oral and Maxillofacial Surgery Department of Stomatology Hospital of Xi’an Jiaotong University from January 2010 to June 2012 were retrospectively analyzed. CBCT examination was performed in each patient before operation. Among them, 28 cases (32 sides) had panoramic tomography before CBCT and 17 cases (25 sides) had CT examination. Results: Misdiagnosis rate was 6.25% after 2-sided fracture was diagnosed by panoramic tomography. The CT and CBCT could diagnose condyle fractures without any misdiagnosis or misdiagnosis. Forty-two cases (59 sides) of condylar fractures had 13 condyles (intracapsular) fractures, 27 condylar fractures and 19 condyles fractures. In the 13-sided intra-capsular fracture, type A 7, type B 4, type C 0, and type M 2. PDA classification, Ⅰ type 28 side, Ⅱ type 11 side, Ⅲ type 20 side. Conclusion: The diagnosis of condylar fractures, CBCT is a simple and reliable imaging technique, and can clearly type of fracture, the treatment of its important guiding significance.