Yamazoe K, Hibino C, Kudo T, Yanai T
Department of Veterinary Surgery, Faculty of Agriculture, Gifu University, Japan.
J Vet Med Sci. 1994 Aug;56(4):739-45. doi: 10.1292/jvms.56.739.
The reduction of experimental humeral fracture in pigeons was performed with intramedullary bone cement (poly (methyl methacrylate): PMMA) and neutralization plate fixation to investigate the effect on bone fracture healing and the recovery of flying ability. As a result, neither plate nor bone cement fixation held for more than 2 weeks, but not refracture was observed in any cases with both plate and bone cement. In the latter group, it was confirmed by flight tests that almost normal flying ability was recovered in 6 weeks. In pathological findings, blood supply to the fractured ends recovered within 2 weeks and no cortical bone necrosis was observed at the time except for a disturbance of endosteal callus formation. The process of fracture healing on the plate side took place slightly later than that on the non-plate side, and when much PMMA remained between the fractured ends of the cortical bone the bone formation became spongioid. In view of the quick recovery of flying ability, however, plate and bone cement fixation is considered appropriate to prevent the displacement of a humeral fracture in the pigeon.
采用髓内骨水泥（聚甲基丙烯酸甲酯：PMMA）和中和钢板固定对鸽子的实验性肱骨骨折进行复位，以研究其对骨折愈合及飞行能力恢复的影响。结果，钢板和骨水泥固定均未维持超过2周，但在同时使用钢板和骨水泥的所有病例中均未观察到再骨折。在后一组中，通过飞行测试证实，6周内几乎恢复了正常飞行能力。病理检查发现，骨折端的血供在2周内恢复，除骨内膜骨痂形成受到干扰外，当时未观察到皮质骨坏死。钢板侧骨折愈合过程比非钢板侧稍晚，当皮质骨骨折端之间残留大量PMMA时，骨形成呈海绵状。然而，鉴于飞行能力的快速恢复，钢板和骨水泥固定被认为适合防止鸽子肱骨骨折移位。
