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- Avatar Bipolar Cup
Avatar Bipolar Cup
Material Specs: SS316L with UHMWPE
- Self-centering design
- Highly polished SS outer shell – designed to reduce friction
- Pre-assembled monoblock construct – Prevents micro motion, allows intraoperative ease of use
- Easy to use efficient instruments
Internal head sizes (mm):
- For OD: 37 – 43 = 22.2 (-2.5, 0, +2.5)
- For OD: 45 – 53 = 28 (-4, 0, +4)
(2mm increments in OD)
Frequently Asked Questions
Why choose the Avatar Bipolar Cup for hip arthroplasty?
The Avatar Bipolar Cup is designed for hip hemiarthroplasty, offering a dual-articulation mechanism that promotes smooth joint movement while helping reduce stress on the acetabulum. Its modular design, multiple size options, and high-quality materials enable surgeons to achieve an anatomical fit and restore hip function in appropriately selected patients.
Does the Avatar Bipolar Cup help reduce implant friction?
Yes. The Avatar Bipolar Cup incorporates a polished metal outer shell and a UHMWPE (Ultra-High Molecular Weight Polyethylene) inner liner that create a low-friction articulation. The bipolar design distributes movement between two articulating surfaces, helping reduce friction and wear while supporting smooth hip motion.
What are the key features of the Avatar Bipolar Cup?
The Avatar Bipolar Cup features a bipolar articulation, highly polished metal outer shell, UHMWPE inner liner, modular compatibility with femoral heads, and multiple size options to accommodate different patient anatomies. Its design aims to provide smooth articulation, stability, and reliable performance in hip hemiarthroplasty procedures.
What is the difference between bipolar hip replacement and total hip replacement?
In a bipolar hip replacement (hemiarthroplasty), only the femoral head is replaced, while the natural acetabulum is preserved. In a total hip replacement (THR), both the femoral head and the acetabular socket are replaced. Bipolar hip replacement is commonly indicated when the acetabular cartilage is healthy, whereas THR is preferred when both joint surfaces are affected.
What materials are commonly used in bipolar hip implants?
Bipolar hip implants are commonly manufactured using cobalt-chromium or stainless steel for the outer shell and UHMWPE (Ultra-High Molecular Weight Polyethylene) for the inner bearing. These materials are selected for their strength, durability, biocompatibility, and low-friction articulating properties.
