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The role of the tibial nutrient artery. Microsphere estimation of blood flow in the osteotomised canine tibia

1990; British Editorial Society of Bone & Joint Surgery; Volume: 72-B; Issue: 3 Linguagem: Inglês

10.1302/0301-620x.72b3.2341434

2044-5377

RK Strachan, I. D. McCarthy, Robert Fleming, S. P. F. Hughes,

Artificial Intelligence in Healthcare and Education

There has been a long-standing debate as to whether medullary or periosteal flow is the dominant vascular supply during the healing of diaphyseal fractures. We used radioactive microspheres to quantify blood flow to the canine tibia two weeks after an osteotomy. There was a significant contribution from the periosteum to the blood supply of healing cortical bone after nutrient artery ligation, with a reversal of flow from a centrifugal to a centripetal direction. Our study has confirmed the qualitative observations of Trueta (1974) regarding the significant recruitment of vessels from surrounding soft tissue during fracture healing. We have not studied the later stages of healing.