Grignon B, Pere P, Régent D, Pourel J, Gaucher A
Clinique Rhumatologique, C.H.R.U. de Nancy, Hôpital de Brabois, Vandoeuvre.
J Radiol. 1990 Oct;71(10):525-30.
The fractures by bony insufficiency are particularly well seen on MRI. On T1 weighted images they are detected as a very hypointense line surrounded by a hypointense area. On T2 weighted images, the hypointense line is also recognized and represents the fracture surrounded by a hyperintense area due to oedema or hemorrhage. Five cases of bony insufficiency fracture of the femoral head are reported. The features of the superior subchondral locations of these fractures and some primary and limited epiphyseal osteonecrosis are similar and consistent with a common pathogeny.
骨量不足性骨折在磁共振成像（MRI）上表现得尤为明显。在T1加权图像上，它们表现为一条极低信号的线，周围环绕着一个低信号区域。在T2加权图像上，这条极低信号的线也能被识别出来，代表着骨折，其周围是由于水肿或出血形成的高信号区域。本文报告了5例股骨头骨量不足性骨折。这些骨折位于软骨下上方的特征与一些原发性和局限性骨骺骨坏死相似，且符合共同的发病机制。
