Can a femur bone be replaced

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The Femur is the thigh bone - the longest, strongest and largest bone in the human skeleton. It consists of a strong middle section and is involved in the construction of a joint at both ends: At the upper end, the femur is connected to the pelvic bone via the hip joint, and at the lower end via the knee joint to the shinbone (tibia). Read everything you need to know about the femur!

What is the femur

Femur is the medical term for the thigh bone. It is a long bone and is divided into different sections:

The spherical one sits at the top Femoral head (Caput femoris) slightly angled on a long neck (Collum femoris), the Femoral neck. The head, together with the socket of the pelvic bone, forms the hip joint, which enables the leg to move. Depending on age and gender, the femoral neck forms an angle of different size (collum-diaphyseal angle) with the shaft: in newborns and infants, the angle is up to 143 degrees. It gets smaller with age and eventually reaches 120 to 130 degrees in adults.

The femoral neck becomes thicker from top to bottom and is flattened from front to back. This shape enables heavy loads to be handled - the real task of the femoral neck. It can be compared to the jib of a crane that carries the load of the body. The trabeculae inside then correspond to the struts of a crane. With age, some of these struts disappear, increasing the risk of fracture of the femoral neck in the event of a fall.

The strong central part of the femur, the shaft (Corpus femoris), has a reinforcing strip (Linea aspera) on its back. It serves as an attachment point for various muscles. Above all, however, thanks to this reinforcement line, the femoral shaft has a comparatively high stability with a small diameter.

At the very top of the shaft there is a rounded bone hump on the outside and inside: the big one is on the outside Rolling hills (Trochanter major) and inside the small rolling hillock (T. minor). Muscles attach to both (like the hip flexor). The large rolling mound (in contrast to the small one) can be clearly felt from the outside.

At the lower end, the femur is widened to two rolls, which are cartilage-covered gnarls (condylus medialis and lateralis). Together with the shinbone (tibia), they form the knee joint.

What is the function of the femur?

The femur is the strongest and longest bone in the body. Through its involvement in the hip and knee joints, the femur allows the leg to move relative to the trunk and the lower leg to move relative to the thigh.

Where is the femur located?

The femur (thigh bone) connects the trunk to the lower leg. It is articulated with both the pelvis and the shin.

What problems can the femur cause?

The femur can break at any point. Such fractures occur particularly frequently in the area of ​​the femoral neck (femoral neck fracture) - especially in older people.

Arthrosis in the hip joint (coxarthrosis) is also mainly seen in older people. If conservative treatment does not sufficiently relieve the symptoms, an artificial hip joint (hip joint prosthesis) is often used. Even with osteoarthritis of the knee (gonarthrosis), a prosthesis can replace the destroyed joint in an emergency.

The outside angle between Femur and shin at the knee joint is usually around 176 degrees. With knock knees it is reduced, with bow legs it is enlarged.

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