Tibial Tray | Core Load-Bearing Component of Total Knee Arthroplasty System

Product Overview

The Tibial Tray is a key load-bearing implant in the total knee arthroplasty system, designed to replace the diseased and damaged proximal tibial structure. One end is stably fixed to the tibial bone bed, while the other forms a frictional motion interface with the femoral liner-providing mechanical support and a foundation for flexible knee joint movement. It is indicated for patients with severe knee dysfunction caused by osteoarthritis, rheumatoid arthritis, knee trauma, etc., and is a core component ensuring post-operative stability, mobility, and long-term implant survival.

Core Types & Design Features

Based on clinical fixation needs and adaptation scenarios, the Tibial Tray offers multiple types to cover diverse patient bone conditions and anatomical characteristics:

1. Cemented Tibial Tray

Optimized Bone Cement Groove Design: Increases the contact area between the base and bone cement, enhancing the bonding force between cement and implant, significantly improving cement fixation stability, and reducing the risk of post-operative loosening;

Full-Enclosure Locking Mechanism: Effectively reduces wear between the back of the liner and the base, delaying component degradation and extending the overall service life of the prosthesis.

2. CMA Tibial Tray

Pre-Assembled Distal Plug: Simplifies surgical procedures and improves surgeon installation efficiency;

Back Non-Perforation Design: Reduces friction contact points between the liner and base, further minimizing component wear;

Modular Flexible Adaptation: Supports adding spacers and connecting 30/50mm titanium alloy extension rods, adapting to complex clinical scenarios such as proximal tibial bone defects and anatomical variations-reducing additional bone repair surgical steps.

3. MB-Type Tibial Tray

Free Modular Compatibility: Can be arbitrarily paired with MB liners of different specifications, while being compatible with both CR and PS femoral components;

Personalized Anatomical Matching: Through combinations of tibial bases and liners of different specifications, it precisely matches the patient's knee joint anatomical parameters, improving surgical adaptation and post-operative joint fit.

Core Product Advantages

Multiple Fixation Methods for Diverse Bone Conditions

Covers cemented fixation, modular fixation, and other solutions-meeting routine fixation needs for patients with good bone quality, as well as complex fixation scenarios for patients with insufficient bone mass or tibial defects.

Wear Control to Extend Prosthesis Life

Detail optimizations (e.g., full-enclosure locking mechanism, non-perforation design) effectively reduce friction and wear between components, lowering the risk of prosthesis degradation and enhancing long-term stability.

Modular Flexibility for Complex Cases

The modular design of CMA/MB types allows flexible adjustments via spacers, extension rods, etc.-adapting to complex cases such as tibial anatomical variations and bone defects, and improving the personalized adaptability of surgery.

Clinical Application Scenarios

Primary Total Knee Arthroplasty: For patients with primary knee lesions (e.g., osteoarthritis, rheumatoid arthritis);

Complex Knee Replacement Scenarios: Adapts to patients with proximal tibial bone defects or anatomical abnormalities (achieved via modular component matching);

Patients with Varying Bone Quality: Cemented type for patients with good bone quality; modular types for patients with insufficient bone mass or needing personalized adjustments.

Frequently Asked Questions (Q&A)

Q1: What is the function of the groove design in the cemented tibial tray?

A1: The optimized bone cement groove design increases the contact area between the base and bone cement, strengthening the bonding force between the cement and implant. This significantly improves the stability of cement fixation and reduces the risk of post-operative implant loosening.

Q2: Which patients are suitable for the CMA tibial tray's modular design?

A2: It is suitable for patients with proximal tibial bone defects or anatomical structures incompatible with standard prostheses. Flexible adjustments (via adding spacers or connecting extension rods) enable precise adaptation, reducing the need for additional bone repair procedures.

Q3: Where does the modular flexibility of the MB-type tibial tray lie?

A3: The MB-type tibial tray can be arbitrarily paired with MB liners of different specifications and is compatible with both CR and PS femoral components. It allows matching components based on the patient's knee joint anatomical parameters (e.g., proximal tibial size, femoral type), improving the personalized adaptability of the surgery.

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