► Lower limb
Surface
Skeleton
Muscles
Femur
►
►
►
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Overview
Pelvis
Hip
Fossa trochanterica
Caput
femoris
Linea pectinea
Linea aspera,
Labium mediale
Fovea
capitis
femoris
Trochanter
major
Crista intertrochanterica
Trochanter minor
Tuberositas
giutea
Collum femoris
Tuberculum
quadratum
Fig. 1243
Femur, Femur;
proximal extremity;
dorsal view.
Fig. 1244
Femur, Femur;
variability of the angle of the neck of the femur;
dorsal view.
The angle between the neck and the shaft of the femur is
referred to as neck-shaft angle. It is 150° in infants and about
126° in the adult.
Fig. 1245
Femur, Femur;
trabecular structure of the femoral bone with a large
neck-shaft angle (coxa valga); section in the plane of the
angle of anterior torsion (60%).
The lateral plates of the trabecular bone* ("tensile system")
are only poorly developed, whereas the medial plates**
("compressive system") are much stronger.
Fig. 1246
Femur, Femur;
trabecular structure of the femoral bone with a small
neck-shaft angle (coxa vara); section in the plane of the
angle of anterior torsion (60%).
The lateral plates of the trabecular bone * ("tensile system")
are well developed, while the medial plates **
("compressive system") are developed less strong. As a
result of the high demand of flexion, the cortex on the inner
side of the femoral neck is particularly thick.
