The hip prosthesis is intended to replace the damaged hip joint. The hip is one of the largest joint in the body.
Experts in Traumatology say that there are different types of hip There are four components in it.:
- Acetabular component: it is placed inside the acetabular cavity.
- Insert the acetabular component: is positioned within the acetabular component
- Femoral stem: is placed inside the femoral canal
- Head of the prosthesis is placed at the end of the femoral stem
The components of the hip prosthesis can be "snap fit" into the bone in order for the bone to grow on ingredients. Another option is that these components are cementen in the place where they go. You can also perform a combination of cemented stem and uncemented cavity. The decision to perform surgery in one way or another, is based on various factors such as the quality and strength of the patient's bone. The surgeon will always choose the type of prosthesis that best suits the needs of the patient.
When to make the placement of a hip prosthesis?
The placement of a hip prosthesis is indicated for patients suffering from hip pain that limits daily activities, such as walking; Hip pain that persists at rest; stiffness in the hip, which limits the ability d move or lift the leg; and inadequate pain relief.
The main reasons exist to place a hip replacement are:
- Rheumatoid arthritis
- Post-traumatic arthritis
- Avascular necrosis
- Hip disease of childhood
To the left, a standard cementless femoral component; right, area of the femoral component with the porous surface. On it the bone can grow.