What is Stryker Trident acetabular cup made from?
Alumina Heads. The Trident Polyethylene Inserts lock into the shell by means of a circumferential ring that engages the shell’s mating groove. Rotational stability is achieved when the shell’s anti-rotational barbs interlock with the insert scallops.
What are acetabular cups?
In ancient dining, an acetabulum (Greek: ὀξίς, ὀξύβαφον, ὀξυβάφιον) was a vinegar-cup, which, from the fondness of the Greeks and Romans for vinegar, was probably always placed on the table at meals to dip the food in before eating it.
What is acetabular cup made of?
Requiring extreme precision, acetabular cups are composed of a titanium or cobalt chrome shell and Ultra High Molecular Weight Polyethylene liner.
What is a Trident hip replacement?
The Trident® Ceramic System uses a process called arc deposition to apply a titanium metal coating to the Trident® acetabular shell’s outer surface. This coating gives a slightly rough and textured surface to the acetabular shell, allowing the implant to initially fixate onto the bone.
What is Stryker Accolade 2 made of?
A portion of the stem is covered in a proprietary version of a calcium compound called hydroxylapatite (HA). Stryker calls its version of the material PureFix HA. The Accolade II is a similar stem that uses a metamorphic wedge designed to fit a range of bone sizes.
What is Tritanium made of?
Titanium
Tritanium is made from high-quality, commercially pure Titanium. Studies have shown that it improves bone ingrowth when compared to other alloys3.
How do you fix aseptic looseness?
To correct aseptic loosening, a revision surgery may be necessary. While secondary surgeries are known to be less successful than the primary operation, for a total hip arthroplasty, the failure rate accounted for 5% of cases reported after revision [83].
What is the cup in a total hip replacement?
The cup position is described as the spatial relation between the hip rotation centre and the pelvis and, as the cup orientation around the rotation centre. The first parameter affects hip balance and, if not managed properly, might result in poor function and leg length discrepancy.
What is hybrid hip replacement?
Hybrid hip replacements combine the use of a cemented femoral stem with an uncemented acetabular cup. The benefit of this is that it allows the use of more contemporary bearings such as ceramics.
How long do titanium hips last?
How long titanium hips last. According to the Cleveland Health Clinic, most hip replacements likely last about 10-15 years, but with the latest technology, that number could be higher. However, the Kennedy Center’s titanium hip replacement has a proven record of lasting far longer than 10-15 years.
What is the best material to use for hip replacement?
Polyethylene—Plastic is by far the most common material used for hip replacement liners. This material has provided good to excellent results when paired with ceramic or cobalt-chromium balls.
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