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What is a legion in the knee?

What is a legion in the knee?

LEGION™ Legion Total Knee System. With the LEGION? Total Knee System surgeons can offer a customized solution to meet their patient’s expectations. This system is designed to help restore function while preserving soft tissue and bone in the reconstructed joint.

What is femoral component?

The femoral component reproduces the anatomy of the distal femur; it has an asymmetrical anterior flange similar to the patellar grove, which is useful to avoid lateral dislocation of the patella.

Why is oxinium?

OXINIUM material—a metal alloy with the surface transformed to ceramic using a patented process—has proven to be a superior metal for use in hip and knee implants due to its reduced friction and increased resistance to scratching and abrasion.

What does a lesion on the knee mean?

Cartilage allows the bones in your joints to glide so that your joints move smoothly. A lesion is damage to that cartilage tissue. A lesion in your knee cartilage creates friction in the joint, which causes pain. In some cases, a knee cartilage lesion can lead to arthritis.

What does it mean when you have a lesion on your knee?

Osteochondral lesions or osteochondritis dessicans can occur in any joint, but are most common in the knee and ankle. Such lesions are a tear or fracture in the cartilage covering one of the bones in a joint. The cartilage can be torn, crushed or damaged and, in rare cases, a cyst can form in the cartilage.

What are femoral stems made of?

The femoral stem is the portion of the replacement that fits into your thigh bone. Historically, this is made from titanium and/or cobalt-chromium metals. In the modern era of hip replacements, cemented stems (inserted with a surgical bone cement) are composed of cobalt-chromium metals.

What is the femoral component of hip replacement?

The femoral component is the component that fits in the femur (thigh bone). Bone is removed and the femur is shaped to accept the femoral stem with attached prosthetic femoral head (ball). There are two types of fixation: cemented and uncemented.

Is a lesion a fracture?

Bone lesions are areas of bone that are changed or damaged. Causes of bone lesions include infections, fractures, or tumors. When cells within the bone start to divide uncontrollably, they are sometimes called bone tumors. Most bone lesions are benign, meaning they are not cancerous.

How do you treat a lesion on the knee?

  1. Treatment begins with avoiding activity that causes pain. Use crutches to offload the affected knee.
  2. You can take an over-the-counter pain reliever.
  3. Try the following:
  4. Gradually return to your usual activities.
  5. Surgery can be a recommended option.

How big is the Legion HK femoral bone?

The LEGION™ HK femoral components are available in sizes 3-4-5 and 7 in asymmetrical configurations. Bone preparation requires two variations from the LEGION Revision femoral technique. The posterior resection will be made through the 10mm posterior wedge resection slots which eliminate the need for posterior chamfer resections.

What are the features of the Legion femoral system?

All LEGION Femoral Components share the following features: OXINIUM ◊ material and CoCr options Anatomic design Lateralized trochlear groove Common A-P Resection

What kind of Osteotomes are used for femoral fractures?

Angled osteotomes may be helpful in freeing the condylar portions of the femoral components. If the interfaces have been adequately freed, minimal force is typically required to remove the femoral component. Excessive force to remove the component may lead to femoral fracture.

How big is the Legion HK hinge knee system?

The LEGION HK Hinge Knee System utilizes the same footprint for the femoral and tibial components for their respective size offerings as the LEGION Revision System (sizes 3-4-5 and 7 for the femoral components and sizes 2-3-4-5 and 7 for the tibial components).

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