Klassifikation der Osteoporose

Anwendung

Osteoporose

Grade 7(normal pattern in young adults)
There is no pencilling of the cortex; the whole of the proximal femur appears full of trabeculae bone. Ward's triangle (an area which does not contain any major trabeculae) is filled with minor trabeculae which are as dense as any in the rest of the proximal femur, and the structure of the major trabeculae is obscured.
Grade 6There is no pencilling of the cortex; the proximal femur still contains many minor trabeculae. Ward's triangle still contains some trabeculae but, unlike grade VII, these trabeculae are not as dense as those in the adjoining areas. The structure of the major trabeculae is just beginning to show but it is still not clear. These points distinguish grade VI from grade VII.
Grade 5There is still no pencilling of the cortex. Ward's triangle is completely clear of al minor trabeculae and the structure of the major trabeculae is accentuated. Secondary compressive trabeculae present a somewhat mottled appearance. Secondary tensile trabeculae are present up to the center of the neck of the femur and, along with the principal tensile group, from a large bundle of tensile trabeculae
Grade 4Pencilling of the cortex is present in this and all lower grades. Ward s triangle is empty. Secondary compressive trabeculae are resorbed, so that Ward's triangle opens up laterally. Secondary tensile trabeculae are also resorbed, so that the bundle of tensile trabeculae no longer reaches the middle of the femoral neck. Principal tensile trabeculae can still be traced across the upper and outer pan or" :he neck of the femur.
Grade 3Pencilling is present. Ward's triangle is empty. Secondary compressive trabeculae are resorbed. Secondary tensile trabeculae also are resorbed. As the principal tensile trabeculae are traced from the outer cortex toward the neck of the femur, they break up into a honeycomb appearance opposite the greater trochanter. However, the tensile bundle is still intact in the upper part of the femoral neck. These points distinguish grade III from grade IV.
Grade 2Pencilling is present. Ward's triangle is empty. Secondary compressive trabeculae are resorbed. Secondary tensile trabeculae are resorbed. Principal tensile trabecuiae in the upper part of the femoral neck are also resorbed and can be seen only near the outer cortex of the femur. Principal compressive trabeculae from the only prominent bundle of trabeculae in the upper femur.
Grade 1Pencilling is present. Ward's triangle is empty. Secondary compressive trabeculae are absent. Secondary tensile trabeculae are absent. Principal tensile trabeculae are no longer visible, even near the shaft of the femur. Even principal compressive trabeculae are markedly decreased in number and no longer prominent. The bone appears washed out and there is little difference in the density of soft tissues and porotic bones.