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U2 Fixed Bearing Brochure

U2 Fixed Bearing Brochure
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U2 Fixed Bearing Brochure

Product catalog summary
Overview of the U2 Knee System
The U2 Knee System is a comprehensive solution for total knee replacement, designed to restore knee function across a full range of motion. It offers full interchangeability and multiple fixed-bearing insert options, including Cruciate Retaining (CR), Posterior Stabilized (PS), and ultracongruent inserts to meet diverse patient morphological needs.
Components and Features
  • Tibial Baseplate Options: Available in cemented, augmentable, and TPS PLUS types to accommodate varying levels of bony defects and fixation preferences.
  • Femoral Components: Both PS and CR femoral components feature consistent condylar curvature and intercondylar width, allowing interchangeability with tibial components. They are available in 2 mm A/P and M/L increments for comprehensive sizing.
  • Advanced Bearing Technology: The E-XPE insert demonstrates a 60% reduction in wear compared to XPE after accelerated aging, with improved tensile strength and oxidative stability.
Design and Surgical Considerations
  • Ultracongruent Design: Accommodates CR femoral components and allows for bone preservation with a PCL sacrificing technique.
  • Patella Groove Design: Extended patella groove increases contact area for optimal patella tracking.
  • Mechanical Strength: E-XPE does not require heat treatment post-cross-linking, enhancing tensile strength by 20% compared to highly cross-linked polyethylene.
Order Information
The document provides detailed order information for various components, including femoral components, tibial baseplates, and inserts, with specific part numbers for different sizes and materials.
Product Specifications
The document provides specifications for various orthopedic components, including diameters and thicknesses in millimeters. The diameters range from 22 mm to 44 mm, and thicknesses are specified as 5 mm and 10 mm. Specific product codes are associated with each size and type of material, such as UHMWPE, XPE, and E-XPE.
Product Codes
- UHMWPE: 2401-1010 to 2401-1040
- XPE: 2403-3010 to 2403-3040
- E-XPE: 2403-5010 to 2403-5040
- Additional codes for thicknesses and diameters are provided, such as 2803-5201 to 2803-5272.
References
The document cites several studies and data sources, including analyses of knee replacements and long-term follow-ups of tibial components. Key references include studies published in the Journal of Bone and Joint Surgery and the journal Knee.
Additional Information
The document notes that all product brochures are authored in English, and translations are not verified by United Orthopedic Corporation. The CE mark is valid only if printed on the product label.
Contact Information
For questions regarding products, contact United Orthopedic Corporation through their website.
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Catalog excerpts

U2 Fixed Bearing Brochure-2

United Orthopedic U2 Knee – The U2 Knee system is a comprehensive and organized total knee system designed to restore knee function throughout a full range of motion. The U2 Knee system provides full interchangeability and multiple fixed-bearing insert options. In addition to the commonly used CR and PS type inserts, U2 Knee system offers ultracongruent insert options, in order to offer more extensive choices for broader patient morphological demands. The tibial baseplate is available for varying levels of bony defects and fixation preferences in the following options – cemented type, augmentable...

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U2 Fixed Bearing Brochure-3

United Orthopedic Consistency in U2 Knee System over Time Consistent condylar curvature and intercondylar width allows fully interchangeability between femoral and tibial components. Femoral Component Polyethylene Insert Polyethylene Insert Femoral Component Tibial Baseplate Tibial Baseplate Patellar Component Patellar Component

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U2 Fixed Bearing Brochure-4

United Orthopedic The PS (posterior stabilized) and CR (curciate retaining) femoral components have the same design features, including 2 mm A/P and M/L increments, extended patella groove, and consistent intercondylar width. The extended patella groove is designed with increased contact area between the patella and femoral implants to allow for optimal patella tracking. Smaller intercondylar bone removal together with rounded corners help avoid the risk of intercondylar fracture for PS box preparation. Two CR femoral component types are available - R (Cemented type) C - R Porous (Sintered CoCr...

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U2 Fixed Bearing Brochure-5

United Orthopedic Within the fixed bearing design, three tibial baseplate options are available. Cemented Modular Augmentable (CMA) Titanium Plasma Spray PLUS (TPS PLUS) Cemented - PS PLUS tibial baseplate allows the T optional addition 30 mm extension stem to address moderate tibial bone defects - MA tibial baseplate allows the optional addition C of 5 & 10 mm augments and 30 mm extension stem to address moderate tibial bone defects - itanium Plasma Spray PLUS T coating designed to improve biological fixation - emented tibial baseplate with rough C surface and cement recess to promote optimal...

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U2 Fixed Bearing Brochure-6

United Orthopedic 5° posterior slope built into CR and PS tibial inserts for horizontal tibial resection. All Poly Tibial Component All CR, PS, UC inserts are available in UHMWPE (Ultra High Molecular Weight Polyethylene), XPE (Highly Crosslinked Polyethylene) , E-XPE (Vitamin E Highly Crosslinked Polyethylene). urable, lower cost, elimination of backside wear, and designed for easier removal if necessary[1,2]. D Multiple articular selections: CR, PS, UC. Posterior slope Ultracongruent Design - Accommodates CR femoral component - The PCL sacrificing surgical technique allows for bone preservation...

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U2 Fixed Bearing Brochure-7

United Orthopedic Advanced Bearing Technology Vitamin E Highly Crosslinked Polyethylene Wear Performance Wear Rate (mg/MC) Extraordinary Wear Performance E-XPE insert shows 60% reduction in gravimetric wear compared to XPE after accelerated aging[3]. Aged E-XPE Tensile Yield Strength (MPa) Mechanical Strength UC Insert Enhanced Mechanical Strength Heat treatment is not required after crosslinking process. Therefore, E-XPE shows a 20% tensile strength improvement as compared to highly cross-linked polyethylene[4]. Unaged E-XPE Aged E-XPE Surface Oxidative Index (OI) Oxidative Stability Inset Patella...

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U2 Fixed Bearing Brochure-8

United Orthopedic Order Information Order Information Special Order Items Femoral Component Special Order Items

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U2 Fixed Bearing Brochure-9

United Orthopedic Order Information Special Order Items Order Information Special Order Items

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U2 Fixed Bearing Brochure-10

United Orthopedic Order Information Order Information All Poly Tibial Component Patellar Component Special Order Items Onset Patella APT-CR Inset Patella Reference [1] ll-Polyethylene Versus Metal-Backed Tibial Components—An Analysis of 27 A ,733 Cruciate-Retaining Total Knee Replacements from the Swedish Knee Arthroplasty Register. Asgeir Gudnason, Nils P Hailer, Annette W-Dahl, Martin Sundberg, Otto Robertsson., J Bone Joint Surg Am. 2014 . [2] he role of the cemented all-polyethylene tibial component in total knee replacement: a 30-year patient follow-up and review of the literature. Thomas...

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U2 Fixed Bearing Brochure-11

Please note that all United Orthopedic Corporation product brochures have been authored in the English language. Any translations into other languages have not been reviewed or approved by United Orthopedic Corporation and their accuracy cannot be confirmed. Any questions regarding United Orthopedic Corporation products should be directed to United Orthopedic Corporation at unitedorthopedic.com/contact The CE mark is valid only if it is also printed on the product label. © 2021 United Orthopedic Corporation.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.