下颌升支矢状劈开截骨术与口内垂直升支截骨术后骨愈合情况的比较。
Comparison of osseous healing after sagittal split ramus osteotomy and intraoral vertical ramus osteotomy.
作者信息
Rokutanda S, Yamada S, Yanamoto S, Omori K, Fujimura Y, Morita Y, Rokutanda H, Kohara H, Fujishita A, Nakamura T, Yoshimi T, Yoshida N, Umeda M
机构信息
Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki City, Nagasaki, Japan; Department of Oral and Maxillofacial Surgery, Juko Memorial Nagasaki Hospital, Nagasaki City, Nagasaki, Japan.
Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto City, Nagano, Japan.
出版信息
Int J Oral Maxillofac Surg. 2018 Oct;47(10):1316-1321. doi: 10.1016/j.ijom.2018.05.013. Epub 2018 May 26.
The sagittal split ramus osteotomy (SSRO) is generally associated with greater postoperative stability than the intraoral vertical ramus osteotomy (IVRO); however, it entails a risk of inferior alveolar nerve damage. In contrast, IVRO has the disadvantages of slow postoperative osseous healing and projection of the antegonial notch, but inferior alveolar nerve damage is believed to be less likely. The purposes of this study were to compare the osseous healing processes associated with SSRO and IVRO and to investigate changes in mandibular width after IVRO in 29 patients undergoing mandibular setback. On computed tomography images, osseous healing was similar in patients undergoing SSRO and IVRO at 1year after surgery. Projection of the antegonial notch occurred after IVRO, but returned to the preoperative state within 1year. The results of the study indicate that IVRO is equivalent to SSRO with regard to both bone healing and morphological recovery of the mandible.
矢状劈开下颌支截骨术（SSRO）通常比口内垂直下颌支截骨术（IVRO）术后稳定性更高；然而，它存在下牙槽神经损伤的风险。相比之下，IVRO具有术后骨愈合缓慢和下颌角前切迹突出的缺点，但下牙槽神经损伤的可能性较小。本研究的目的是比较29例接受下颌后缩手术的患者中，SSRO和IVRO相关的骨愈合过程，并研究IVRO术后下颌宽度的变化。在计算机断层扫描图像上，接受SSRO和IVRO的患者术后1年骨愈合情况相似。IVRO术后出现下颌角前切迹突出，但在1年内恢复到术前状态。研究结果表明，在骨愈合和下颌骨形态恢复方面，IVRO与SSRO相当。
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