髁突矢状骨折的影像学特征及临床分析

目的 探索髁突矢状骨折的影像学特征及临床特点。方法 对14例（15侧）下颌骨髁突矢状骨折患者的临床表现、常规X线、二维CT和三维CT图像进行分析，并对治疗效果随访。结果 14例15侧约占下颌骨髁突骨折的31．25％（15／48），髁突前斜面纵裂处常位于髁突外1／3与中1／3交界处，在髁突后斜面，纵裂常位于髁突中1／3处。随访3－29个月；14例咬合关系均正常。结论 下颌骨髁突矢状骨折主要发生于髁突翼外肌凹所在部位，有效的治疗可获良好的治疗效果；二维CT和三维CT对诊断髁突矢状骨折有重要意义。

X-ray and clinical charactecistics in sagittal fracture of the mandibular condyle

OBJECTIVE: To study the X-ray and clinical characteristics in sagittal fracture of the mandibular condyle (SFMC). METHODS: 14 cases (15 sides) of SFMC in 48 cases who had condylar fractures were studied in the research, every patient was examined by the conventional x-ray, 2D-CT and 3D-CT, and followed up for 3-39 months. RESULTS: The fracture line mainly passed through lateral 1/3 and middle 1/3 of anterior condyle and the middle 1/3 of posterior condyle. Following-up (3-39 months) showed that the patients' occlusions were normal in all cases. CONCLUSIONS: The fracture line mainly located in the lateral pterygoid muscle fossa. Good results can be gotten by effective treatment. The 2D-CT and 3D-CT are valuable to the diagnosis.