What is Poly in a total knee?
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 the poly in a knee replacement?
A fixed bearing knee replacement (conventional knee replacement) means the polyethylene insert (plastic liner between the two metallic surfaces) is fixed inside the tibial tray.
What is Zimmer persona made of?
The Zimmer Persona femoral and tibial components are made from Zimmer’s patented Trabecular Metal technology. Trabecular Metal is made from the element tantalum. It is particularly porous and allows for enhanced bone ingrowth, according to the Zimmer Persona website.
What is the tibial polyethylene insert?
The tibial component is a flat metal platform that holds the polyethylene insert. The components are designed so that metal articulates against plastic, providing smooth movement and minimal wear.
Is polyethylene used in artificial joints?
Artificial joints employing ultra-high molecular weight polyethylene (UHMWPE) are widely used to treat joint diseases and trauma. Wear of the polymer bearing surface largely limits the use of these joints in younger and more active patients.
What is polyethylene wear?
Polyethylene wear is one of the complications of hip joint replacements. Wear results when surfaces produce local mechanical damage and unwanted loss of material and the resultant generation of wear particles may result in eccentric position of a prosthetic head within the cup.
Is knee with poly exchange CPT?
You should bill this procedure using 27486 (revision of total knee arthroplasty, with or without allograft; one component), potentially adding modifier -52 (reduced services), says Robert Haralson, MD, the American Academy of Orthopedic Surgeons (AAOS) coding committee chair.
What is Stryker Triathlon?
Total Knee System. The Triathlon Total Knee System is a primary total knee replacement system designed to work with the body. Triathlon has been implanted in over 3 million patients worldwide. Triathlon Total Knee is available for use with the Mako System for Mako Total Knee.
What is 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.
Is there a plastic knee replacement?
The doctor will remove the damaged surfaces of the knee joint and resurface the knee joint with the prosthesis. The knee prosthesis is made up of metal and plastic. The most common type of artificial knee prosthesis is a cemented prosthesis.
What are fake joints made of?
The stem portion is generally made of a strong, corrosion resistant metal such as titanium, or cobalt and chromium alloys. The rest of the joint may be fashioned from a combination of high-density plastics, metal alloys, or ceramics. Knee joints are likewise often made from titanium and ceramics.