What material is the pegged TSA glenoid Poly made from?

The correct material for the pegged TSA glenoid polyethylene component is UHMWPE, which stands for Ultra-High Molecular Weight Polyethylene. This material is specifically chosen for its excellent wear resistance and durability, making it particularly suited for use in orthopedic applications such as total shoulder arthroplasty.

UHMWPE has unique properties that allow it to withstand the mechanical loads and stresses experienced in the shoulder joint while also providing a smooth surface for articulation against the humeral component. Its low friction characteristics contribute to decreased wear rates compared to other materials, leading to better long-term performance of the implant.

In contrast, polypropylene is not typically used in joint replacement due to its lower mechanical strength and wear resistance. Silicone, while sometimes used in soft tissue implants, does not have the required durability for load-bearing applications like the glenoid in TSA. Titanium, while an excellent material for certain implant components due to its strength and biocompatibility, is not utilized for the glenoid polyethylene component itself. Thus, UHMWPE is the optimal choice for the pegged TSA glenoid.