These cement restrictors are made of Ultra-High-Molecular-Weight Polyethylene (UHMWPE) and available in two different sizes:

• TPA-18 (12-18 mm)
• TPA-24 (18-24 mm)

Therefore, they are suitable to accommodate various patient anatomies and to help restrict cement flow into the distal femoral shaft.

Properties
With these two cement restrictors the medullary space is occluded distal to the subsequent location of the prosthesis tip, to seal the femoral canal.
This sealing is achieved by pressing the cement restrictor inside the femur.