Tseng Yu-Chuan, Ting Chun-Chan, Kao Yu-Hsun, Chen Chun-Ming
School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Orthodontics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2017 Jan;123(1):44-50. doi: 10.1016/j.oooo.2016.08.022. Epub 2016 Sep 13.
This study was aimed at investigating the correlation between intraoperative blood loss and operation-related factors in the treatment of bimaxillary protrusion with four different procedures.
Ninety-four patients were separated into the following four surgical groups: group 1: anterior subapical osteotomy of the maxilla (ASO Mx) + bilateral parasymphyseal osteotomy of the mandible (BPsO Md) + genioplasty (GeP); group 2: ASO Mx + BPsO Md; group 3: ASO Mx + ASO Md + GeP; and group 4: ASO Mx + ASO Md. Patient- and operation-related factors (age, intraoperative blood loss, operation time, and preoperative and postoperative blood parameters) were compared among the four groups.
The mean operation time and intraoperative blood loss were 438.7 minutes and 369.9 mL in group 1; 432.5 minutes and 356.5 mL in group 2; 393.3 minutes and 387.3 mL in group 3; and 353.5 minutes and 289.5 mL in group 4. Intergroup differences in intraoperative blood loss were not significant. A significant correlation between intraoperative blood loss and operation time was found in group 4 but not in the other groups.
No significant differences in blood loss were found among the four different surgical procedures in the treatment of bimaxillary protrusion.
本研究旨在探讨四种不同手术方法治疗双颌前突时术中失血与手术相关因素之间的相关性。
94例患者被分为以下四个手术组：第1组：上颌根尖下截骨术（ASO Mx）+双侧下颌骨颏孔间截骨术（BPsO Md）+颏成形术（GeP）；第2组：ASO Mx + BPsO Md；第3组：ASO Mx +下颌根尖下截骨术（ASO Md）+ GeP；第4组：ASO Mx + ASO Md。比较四组患者与手术相关的因素（年龄、术中失血、手术时间以及术前和术后血液参数）。
第1组的平均手术时间和术中失血量分别为438.7分钟和369.9毫升；第2组为432.5分钟和356.5毫升；第3组为393.3分钟和387.3毫升；第4组为353.5分钟和289.5毫升。术中失血量的组间差异不显著。第4组术中失血与手术时间之间存在显著相关性，而其他组未发现。
四种不同手术方法治疗双颌前突时，术中失血量无显著差异。
