How to Choose the Right Prosthetic Knee Joint for Different Amputation Levels_AoSuo Medical Equipment|Trade|Prosthetics Foot

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How to Choose the Right Prosthetic Knee Joint for Different Amputation Levels

Release Time:

Jan 21,2026

Understand the Types of Prosthetic Knee Joints

1. Single-Axis Knee Joints

Single-axis knee joints provide basic movement and are suitable for lower-level amputees who do not require complex movements. They have a hinge-like action, allowing the user to bend and straighten the knee.

2. Polycentric Knee Joints

Polycentric knee joints mimic the natural movement of the knee more closely by allowing multiple axes of rotation. This type is ideal for more active amputees who engage in various activities.

3. Microprocessor-Controlled Knee Joints

Microprocessor-controlled joints use computerized technology to adapt to different walking conditions, providing a smoother and more natural gait. They are best suited for higher-level amputees looking for advanced functionality.

Evaluate Your Lifestyle Needs

1. Activity Level Assessment

Determine how active you are by considering your daily routine and any sports or activities you engage in. This will influence the type of knee joint you need.

2. Environmental Considerations

Consider where you will be using your prosthetic knee joint. Will you be primarily indoors, or do you require durability for outdoor activities?

Select the Right Material for Comfort and Weight

1. Common Materials Used

Aluminum: Lightweight and affordable
Carbon Fiber: Strong and lightweight, suitable for high-performance
Stainless Steel: Durable but heavier, used for more robust designs

2. Importance of Weight

The weight of the knee joint plays a crucial role in comfort and mobility. Lighter models allow for easier movements, especially for those with lower limb amputation levels.