1) The cases are often seen, in which the infant fracture of tibia the is subperiosteal fracture. Beside, they are almost the single fracture without the fracture of fibula.
2) The subperiosteal fracture of tibia have possibility to happen easily by only very slight external force. And we often meet those cases in which we are unable to recognize any dislocation or movability. So we take sometimes them for the simple contusions. But in these cases, the functional disorder, for which the patients are unable to stand or walk, appear remarkably. And the local tenderness is recognized in the all cases.
3) The greater part of the region of fracture is below from 1/3, of tibia, including the boundary part of the middle and the lower of it.
4) The condition of fracture is torsionfracture, and the fracture-line runs spirally, obliqualy and long, from the upper behind and the outside to the lower front and the inside.
