Total Hip Replacement (THR) System, Cemented/Cementless Hip System, Hip Implant System, Hip Arthroplasty System --- Sistema de reemplazo total de cadera (THR), sistema de cadera cementada/no cementada, sistema de implante de cadera, sistema de artroplastia de cadera,

Total Hip Replacement (THR) System is a comprehensive medical device used in total hip arthroplasty, a surgical procedure to replace a damaged or diseased hip joint with an artificial implant. THR is one of the most successful and common orthopedic surgeries, providing relief from pain, improved mobility, and increased joint function for individuals with severe hip conditions.

Here is information of Total Hip Replacement (THR) System:

1. Components: A THR System typically consists of several components that work together to mimic the function of a natural hip joint. The main components include:

   • Femoral Component: This part replaces the damaged femoral head, which is the ball-shaped end of the thigh bone (femur). The femoral component consists of a stem that is inserted into the femur and a femoral head (ball) that articulates with the acetabular cup.

   • Acetabular Component: This component replaces the hip socket (acetabulum) in the pelvis. It is usually made of a metal shell with an inner liner made of polyethylene or ceramic. The femoral head articulates with the liner to create the hip joint.

2. Materials: The components of a THR System are commonly made from biocompatible materials, such as:

   • Femoral Component: It is often made of metal alloys like stainless steel, cobalt-chromium, or titanium. Some systems also offer ceramic femoral heads for specific cases.

   • Acetabular Component: The outer shell of the acetabular component is typically made of metal, while the liner can be made of polyethylene or ceramic material.

3. Bearing Surface Options: THR Systems offer various bearing surface options, which refer to the materials that come into contact with each other at the joint. Common bearing surface combinations include:

   • Metal-on-Polyethylene (MoP): The femoral head articulates against a polyethylene liner in the acetabular cup. This combination is widely used and has a long track record of success.

   • Ceramic-on-Polyethylene (CoP) or Ceramic-on-Ceramic (CoC): These combinations provide low friction and wear characteristics and are often preferred for younger, more active patients.

4. Surgical Approach: THR surgery can be performed through various surgical approaches, including posterior, anterior, lateral, or anterolateral approaches. 

5. Cemented or Cementless Fixation: THR Systems may be designed for either cemented or cementless fixation. In the cemented technique, bone cement is used to secure the components to the bone. In the cementless technique, the implant is designed to integrate directly with the bone through a process called osseointegration.

6. Modularity: Some THR Systems offer modular components, allowing surgeons to choose different sizes and options for a more customized fit.

7. Post-operative Care: After THR surgery, patients typically undergo physical therapy and rehabilitation to restore joint function and improve mobility.

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