What is a polyethylene exchange?

Exchanging the polyethylene allows greater access to the posterior aspect of the joint, permitting a more complete synovectomy and irrigation and debridement. 25. Irrigation and debridement and polyethylene exchange is an attractive option in treating peri-prosthetic infections because it involves a single operation.

What is a liner exchange?

Isolated liner exchange has become a common surgical intervention when the acetabular component remains well-fixed. The purpose of isolated liner exchange is to prevent loosening of the components secondary to osteolysis and catastrophic mechanical failure caused by bearing wear-through.

What is polyethylene knee replacement?

Abstract. Polyethylene (PE) remains the gold standard for the articulating surface in hip and knee arthroplasty. To increase arthroplasty longevity and improve wear resistance, newer versions of PE have been designed with resultantly different wear properties.

What is patella resurfacing?

Patella resurfacing is occasionally necessary for patients with inflammatory arthritis, a deformed or maltracking patella, or symptoms and pathology that are virtually restricted to the patellofemoral joint. For the vast majority of patients, however, patella resurfacing is not necessary.

Can you walk without a patella?

Though the kneecap is not needed for walking or bending your leg, it makes your muscles more efficient and absorbs much of the stress between the upper and lower portions of the leg. Climbing stairs and squatting can put up to seven times your normal body weight on the kneecap and the joint behind it.

When should a patella be resurfaced?

The consensus in the worldwide literature is that the patella should be resurfaced when inflammatory arthritis is present, the patella is severely deformed, or when patellofemoral joint degeneration is the primary indication for the procedure.

Does a knee replacement include the patella?

Knee replacement, also called knee arthroplasty or total knee replacement, is a surgical procedure to resurface a knee damaged by arthritis. Metal and plastic parts are used to cap the ends of the bones that form the knee joint, along with the kneecap.

Do you still have a knee cap after knee replacement?

A plastic spacer is placed between the pieces of metal. This acts like cartilage, reducing friction as your joint moves. The back of the knee cap may also be replaced, depending on the reasons for replacement.

What is knee resurfacing?

During resurfacing, surgeons shave away diseased or damaged parts of the knee without replacing the knee entirely. Instead, they insert artificial implants to relieve arthritis in a specific compartment of the knee. In the past, this surgery was difficult to perform due to a lack of precision in placing the implants.

How is knee resurfacing done?

The surgeon will expose the knee joint, loosen the muscles and ligaments surrounding it, and turn the kneecap out of its place. The worn surfaces within the joint, including the back part of the kneecap, are removed and the ends of the bones are precisely reshaped.

Who is a candidate for knee resurfacing?

Patients in their fifties or older who have a hard time walking, despite trying non-surgical treatments first, may be good candidates for knee replacement surgery. Before considering knee replacement surgery, I always recommend patients start with improving their diet and exercise routine.

What does joint resurfacing mean?

Joint resurfacing systems such as small metal implants are one surgical method for the treatment of cartilage defects in the major joints. In simple terms, it is a method for plugging cavities in the cartilage, to fill the defects and create a smooth and continuous surface using metal instead of a biologic.

Is Hip resurfacing a major operation?

Who is offered hip replacement surgery. A hip replacement is major surgery, so it is usually only recommended if other treatments, such as physiotherapy or steroid injections, have not helped reduce pain or improve mobility.

Who is a good candidate for hip resurfacing?

Generally speaking, the best candidates for hip resurfacing are younger (less than 60), larger-framed patients (often, but not always male) with strong, healthy bone. Patients that are older, female, smaller-framed, with weaker or damaged bone are at higher risk of complications, such as femoral neck fracture.

Can both hips be resurfaced at the same time?

In a simultaneous procedure both hips are replaced in one operation, on the same day under one anesthesia. This means that there is one hospitalization and one recovery period. Certain patients are at higher risk for medical complications if they undergo simultaneous bilateral hip replacement surgery.

Is second hip replacement easier?

The procedure is technically more difficult than primary hip replacements and the effects on the patient are more significant (longer surgery, more blood loss).

How long will an artificial hip last?

Studies show that more than 80% of all hip replacements across the industry last at least 15 years, and more than 70% last at least 20 years. Individual results may vary.

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