1 Objective To evaluate value of septum - nasal bone reduction in patients with traumatic deviated nose.

2 Methods:113 cases of midface fractures were reviewed. The nasal bone fracture, zygomatic arch fracture, optic nerve contusion, zygomatic maxilla fracture were treated.

3 Relative to fetuses with a nasal bone, those without a nasal bone were estimated to have about 150-times the risk of having trisomy 21.

4 With the two cohorts combined ,[] nasal bone absence a sensitivity of 47.6 % and specificity of 100 %.

5 Results Foramen of nasal bone were revealed linear shadow in axial and coronal images.

6 To learn nasal bone normal variation, we can lessen the misdiagnosis of nasal bone fracture.

7 The nasal bone was absent in 43 of 59 (73%) trisomy 21 fetuses and in three of 603 (0.5%) fetuses with normal karyotype.

8 DISCUSSION This method of reduction for nasal bone fracture is simple and effective.

9 Should choose the pre-operative period, when the nasal bone development has gradually perfect the appearance of inner canthal distance is specifically to improve.

10 Objective : To study the possibility of reduction of nasal bone fracture under nasal endoscope.

11 Objective To study the Function of CT examination to diagnose the nasal bone fracture.

12 Objective To discuss the diagnostic value of VR with MSCT in nasal bone fracture.

13 The origin of procerus was beyond the line between nasal bone and lateral nasal cartilage, and the insertion point was at the level of both medial eyebrows.

14 Objective To research the application value of direct digital radiograph ( DDR ) in nasal bone imaging.

15 A group of ethmoidal cellules were formed among the lacrimal bone, frontal bone and nasal bone.

16 To provide anatomic evidence for aesthetic plastic surgery on the nasal bone.

17 BACKGROUND To search for the effective method of reduction for nasal bone fracture.