Effects of plates on cortical bone perfusion.
Using disulphine blue, sheep tibial cortex perfusion was decreased by subperiosteal stripping but not by extraperiosteal exposure. Semitubular plates applied with either low (20 kp) force, sufficient for extraosseous vascular occlusion, or high (200 kp) force, similar to that used clinically, both produced significant ischemia beneath the plate. In contrast, the dynamic compression plate produced significantly greater ischemia only with the higher force.
D000818:Animals; D001860:Bone Plates / Q000009:adverse effects*; D001842:Bone and Bones / Q000098:blood supply*; D007511:Ischemia / Q000209:etiology; D011312:Pressure; D012039:Regional Blood Flow; D012394:Rosaniline Dyes; D012756:Sheep; D013194:Staining and Labeling
D012394:Rosaniline Dyes; C008769:sulfan blue