5-794.cf:

You have broken your femur (thighbone) and had an operation on it.

The femur has an upper, middle and lower section. The upper section of the femur is connected to the pelvic bones by the hip joint. The upper section includes the neck and head of the femur plus 2 bony protrusions. The bony protrusions lie between the neck of the femur and its central section. The neck of the femur is set at an angle to the central section. The upper section of your femur is broken. The break consists of multiple broken parts.

You had an operation to bring the broken parts of your femur back together and put them into their normal position. The break was stabilized using long nails.

The purpose of the nails is to stabilize the bone from inside. To achieve this, they are inserted into the space inside the bone. The long nails are inserted through bones and join these bones together. Joints, for example, can be temporarily reinforced like this.