Surgical replacement of the head of the femur where it joins the hip is called what?

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Multiple Choice

Surgical replacement of the head of the femur where it joins the hip is called what?

Explanation:
The hip joint is a ball-and-socket structure where the head of the femur fits into the acetabulum of the pelvis. Replacing that joint surgically to relieve pain and restore function is called a hip replacement (hip arthroplasty). The other options refer to different things: knee replacement targets the knee joint, a blood clot is a medical condition, and arthritis is a joint disease rather than the surgical procedure. (Note: replacing only the femoral head is sometimes called a hemiarthroplasty, but replacing the hip joint overall is what’s described here.)

The hip joint is a ball-and-socket structure where the head of the femur fits into the acetabulum of the pelvis. Replacing that joint surgically to relieve pain and restore function is called a hip replacement (hip arthroplasty). The other options refer to different things: knee replacement targets the knee joint, a blood clot is a medical condition, and arthritis is a joint disease rather than the surgical procedure. (Note: replacing only the femoral head is sometimes called a hemiarthroplasty, but replacing the hip joint overall is what’s described here.)

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