Department of Oral and Maxillofacial Surgery, University Hospital Heidelberg, Germany.
J Craniomaxillofac Surg. 2010 Apr;38(3):175-8. doi: 10.1016/j.jcms.2009.07.003. Epub 2009 Aug 5.
Surgically assisted rapid maxillary expansions (SARME) are commonly used to widen the maxilla. This study evaluates long term stability of surgically assisted rapid palatal expansion without performing osteotomy of the pterygoid plates and its effects on nasal airway volume.
13 patients (mean age 31, 23+/-6, 11) with a maxillary transverse deficit of at least 5mm were examined 1 month before and on average 63 months after a mean palatal distraction of 8.29+/-1.68mm by acoustic rhinometry. Profiles of the nasal airway volumes were collected. A cast model analysis was performed. The data were evaluated using Wilcoxon signed rank test.
A V-shaped movement of the segments was observed. The gain for total nasal volume was 23.25%. Findings indicate a significant enhancement of nasal volume in all patients (P<0.01) as result of the maxillary expansion. No relapse occurred in the study group.
SARME provides a long term stable orthodontic bite correction and permanently enhances the nasal airways. A transverse shift of the segments can be achieved over the whole bony palate even when no osteotomy of the pterygo-maxillary suture is performed.
外科辅助上颌快速扩弓（SARME）常用于扩宽上颌。本研究评估了不进行翼上颌缝骨切开术的外科辅助快速腭扩展的长期稳定性及其对上颌气道容积的影响。
对 13 名（平均年龄 31 岁，23±6，11）上颌横向缺损至少 5mm 的患者，在声学鼻测量术前 1 个月和平均 8.29±1.68mm 的平均腭牵引后 63 个月进行检查。收集鼻腔气道容积的轮廓。进行铸型模型分析。使用 Wilcoxon 符号秩检验评估数据。
观察到节段的 V 形运动。总鼻容积的增加量为 23.25%。结果表明，由于上颌扩张，所有患者的鼻腔容积均显著增加（P<0.01）。研究组无复发。
SARME 提供了长期稳定的正畸咬合矫正，并永久性增强了鼻腔气道。即使不进行翼上颌缝合切开术，也可以在上颌整个骨腭上实现节段的横向移位。
