head of femur

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head of fe·mur

[TA]
the hemispheric articular surface at the upper extremity of the thigh bone.

head of fe·mur

(hed fēmŭr) [TA]
Rounded projection at the proximal end of femur; articulates with the acetabulum
Synonym(s): caput femoris [TA] , caput ossis femoris, head of thigh bone.
References in periodicals archive ?
They observed bone collapse in the head of the femur bone, located at the top of the femur at the articulation with the pelvic bone, in 15-17 percent of hip injection patients, versus four percent of hip control patients and two percent of shoulder control patients.
Next, cartilage on the head of the femur bone starts to deteriorate, leading to arthritis.
The head of the femur is replaced with a metal or ceramic ball mounted on a stem that fits into the thighbone.
I had a metal cover put in over the shaved head of the femur, the big leg bone that fits into the ball and socket hip joint.
From both sides, head of the femur was separated from acetabular region and the lower end of femur was separated from the knee joint by carefully separating the ligaments from it.
Think about the stability of the hip--the head of the femur fits nicely into the socket of the pelvis.
This may cause cutting out of the screw from the head of the femur (3) or failure at the nail-plate junction or of the screws securing the plate to the bone.
The most plausible explanation is that a lack of constant physical activity causes the bone in the head of the femur the long bone in the thigh to become thinner and lighter than those found in modern primates such as chimpanzees, gorillas and orangutans," explained Timothy M.
The blocks were used for the retroverted femora, if any, to allow for downward rotation of the head of the femur in space when placed on a horizontal surface, as the table surface will block the rotation of the head in retroverted femora which is angling downward in these femora when placed on horizontal surface.
Prolonged scissoring or turned-in position of the legs may permit the head of the femur to slide backward over the posterior edge of the hip socket.