Comparison of three surgical techniques for controlling nasal width after Le Fort Ⅰosteotomy / 北京大学学报(医学版)

ABSTRACT

Objective: To identify nasal width changes occurring after Le Fort Ⅰosteotomy and to compare prospectively the effect of three surgical techniques for controlling postoperative nasal width . Methods:In the study, 79 patients (22 male and 57 female, mean age 23.2 ±3.4 years), who re-ceived Le Fort Ⅰosteotomy at Peking University Hospital of Stomatology from 2011 to 2014, were ran-domly divided into three groups .Group 1 was treated with traditional intraoral alar base cinch suture ( ABCS);Group 2 with extraoral ABCS, and Group 3 with traditional ABCS plus an extra intraoral suture at points G.lat.All the patients had taken 3D photos using 3dMD camera before operation , and 3, and 6 months after operation.The nasal widths, which were indicated as distances between Sbal-Sbal, G.lat-G.lat and Al-Al, were measured by two examiners in the 3D photos three times with a time-interval of one week .SPSS 13 .0 was used to do the statistic analysis .Results: At the end of the postoperative 6 months, the nasal widths lessened as compared with the postoperative 3 months.No significant diffe-rences were found between the three groups 6 months after the operation .The degree of the postoperative nasal width widening had positive correlation with that of the intraoperative nasal width widening , and had negative correlation with the initial nasal width and the amount of post-suture narrowing .Conclusion:There is no difference between three suturing techniques for controlling nasal width widening after Le FortⅠosteotomy.The postoperative nasal width-widening can’t be totally avoided, and the alteration might last at least 6 months after the operation .For patients with narrow nasal width and need to move maxilla forward , more overcorrection of ABCS is needed to control the postoperative nasal base widening .