Lalonde D H, Williams H B, Rosenthall L, Viloria J B
Ann Plast Surg. 1984 Nov;13(5):366-74. doi: 10.1097/00000637-198411000-00003.
The circulation in microvascularized rib grafts has been compared with that in conventional rib grafts and in those augmented by a direct vascular bundle implantation into the bone grafts. A new experimental model has been designed to correlate vascular perfusion, bone scan patterns, tetracycline labeling, and histological findings in these bone grafts. Posterior microvascularized rib grafts were found to have a circulatory pattern identical to that of the normal rib. Failed microvascularized rib grafts were revascularized more slowly than conventional rib grafts. Vascular bundles implanted into rib grafts remained patent and increased the rate of revascularization. The stripping or preservation of periosteum had no observable effects on the rate or pattern of conventional rib graft revascularization. The circulation in rib grafts was accurately reflected in technetium 99 bone scans, as was the patency of the anastomoses of microvascularized rib grafts and of implanted vascular bundles. In contrast, tetracycline labeling was repeatedly observed in avascular areas of bone grafts and, therefore, is not a reliable indicator of bone graft circulation.
已将微血管化肋骨移植物中的血液循环与传统肋骨移植物以及通过直接将血管束植入骨移植物中而增强的肋骨移植物中的血液循环进行了比较。已设计出一种新的实验模型，以关联这些骨移植物中的血管灌注、骨扫描模式、四环素标记和组织学结果。发现后侧微血管化肋骨移植物具有与正常肋骨相同的循环模式。失败的微血管化肋骨移植物再血管化比传统肋骨移植物更慢。植入肋骨移植物中的血管束保持通畅，并提高了再血管化速率。骨膜的剥离或保留对传统肋骨移植物再血管化的速率或模式没有可观察到的影响。肋骨移植物中的血液循环在锝99骨扫描中得到准确反映，微血管化肋骨移植物和植入血管束的吻合口通畅情况也是如此。相比之下，在骨移植物的无血管区域反复观察到四环素标记，因此，它不是骨移植物循环的可靠指标。
