Quantitation of blood flow after Le Fort I osteotomy.
Quantitation of blood flow after Le Fort I osteotomy.
复制标题
Le Fort I 截骨术后的血流量定量。
DOI：
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发表时间：
1977
期刊：
影响因子：
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通讯作者：
Meyer Mw
中科院分区：
文献类型：
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作者：
Nelson Rl;Path Mg;R. Ogle;D. Waite;Meyer Mw
对10只猕猴进行了Le Fort I上颌骨截骨术。采用粒子分布法(非扩散放射性微球)对手术前后局部血流量进行定量。在那些切断腭降血管的动物(S组)中，流向截骨上颌段的血流量显著减少。血管蒂完整的动物(I组)，附着的牙龈和牙槽骨的血流量减少，但腭部组织的血流量不变或增加。这些结果强化了在进行正颌外科手术时保持足够营养的椎弓根的重要性。
Le Fort I maxillary osteotomies were performed on ten macaque monkeys. The particle distribution method (nondiffusible radioactive microspheres) was used to quantitate local blood flow before and after surgery. Significant reduction in blood flow to the osteotomized maxillary segment was noted in those animals (group S) where the descending palatine vessels were transected. Those animals in which the vascular pedicle was intact (group I) showed decreased blood flow to the attached gingiva and alveolar bone, but palatal tissue blood flow was unchanged or increased. The results reinforce the precept of the importance of maintaining an adequate nutrient pedicle when performing orthognathic surgical procedures.