Grimm J, Haist J, Higer H P
Orthopädische Universitätsklinik Mainz.
Z Orthop Ihre Grenzgeb. 1991 Mar-Apr;129(2):151-5. doi: 10.1055/s-2008-1040175.
Lateral displacement of the femoral head and slight flattening are typical radiological signs of early Legg-Calvé-Perthes disease. There is the value of magnetic resonance imaging (MRI) in demonstrating the congruity of the acetabular and femoral articular surfaces, the cartilage, the femoral head containment, intracapsular joint effusion, and hypertrophy synovium without using any ionizing radiation. Loss of containment because of lateralisation seems to be the result of medial hypertrophy of the femoral head cartilage. The hips show a characteristic low-intensity signal in T1-weighted images representative of necrotic areas of the capital epiphysis. The extent of involvement and revascularisation can be identified in Legg-Calvé-Perthes disease.
股骨头向外移位和轻度扁平是早期莱-卡-佩病典型的放射学征象。磁共振成像（MRI）在显示髋臼和股骨头关节面的一致性、软骨、股骨头包容情况、关节囊内积液以及滑膜增生方面具有价值，且无需使用任何电离辐射。由于股骨头向外移位导致的包容丧失似乎是股骨头软骨内侧增生的结果。在T1加权图像上，髋关节呈现特征性的低强度信号，代表股骨头骨骺的坏死区域。在莱-卡-佩病中可以确定受累范围和再血管化情况。
