U2 PF+ Knee | United Orthopedic Corporation | Hip and Knee Implants

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Product Overview

The U2 PF+ Knee System is a comprehensive, advanced Press-fit Total Knee Replacement (TKR) system designed to meet the needs of patients, surgeons, hospital and surgery centers globally.

The system offers a three-dimensional coating designed for optimal pore size and porosity, a conforming femoral shape in 13 sizes with 2 mm A/P and M/L sizing increments, a unique box design and a consistent intercondylar box width, a full range of tibial articulating surface and multiple material options, and a modern tibial baseplate design for initial fixation and stability.

UNITED Asymmetric Sintering Coating Technology

UNITED Asymmetric Sintering Coating (ASC) Technology creates a unique three-dimensional structural lattice of irregularly shaped shards to increase the average pore size more than traditional spherical beads. The irregularly shaped interconnecting pores maximize coverage on bone contacting surfaces to promote optimal bone growth and fixation to the implant.

ASC Technology is available with U2 PF+ Knee System to provide an excellent balance among material strength, pore sizes, and porosity for a reproducible press-fit fixation in total knee arthroplasty.

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Product Features

Slide The CoCr ASC Technology improves biological fixation with optimal pore size and porosity. Various constraint and material options are available with posterior slope built into tibial inserts. UHMWPE E-XPE CR PS UC XPE Cruciform pegs are designed to provide initial fixation and stability. Femoral components with 2 mm A/P and M/L increments for refined sizing solution. Optional 20 mm and 35 mm bullet tip stems available. The titanium ASC Technology promotes an optimized microstructure to enhance osseointegration. The wavy keel enhances 36% bone contact area compared to the conventional design. The bladed design helps improve insertion efficiency during implantation. Pegs on femoral components guide the position precisely.

The U2 PF+ Knee System includes a wide range of product options for demand-matching to optimize solutions based on patients’ need.

Optimized Tibial Workflow

Modern tibial instruments are designed for accuracy without compromising bone integrity, ensuring initial stability and long-term biological fixation of the tibial baseplate.

Streamlined Femoral Preparation

● Modular femoral trials allow for a simple conversion from CR to PS.
● PS notch preparation with cut-through modular femoral trials.

Modular Insert Trials

● PS post trials enable simple transformation.

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