Above Knee Kit with Polycentric (Four-Bar) Knee Joint – Advanced Mobility Solution | Discover Affordable Prosthetic Components Near You
Designed for Stability, Comfort, and Natural Motion
The Above Knee Kit with Polycentric (Four-Bar) Knee Joint is a high-performance prosthetic solution tailored for above-knee amputees seeking enhanced mobility, confidence, and joint stability. With a mechanical polycentric knee design, this kit delivers a more natural walking gait by closely mimicking human knee movement. It provides better ground clearance during swing phase, making daily motion smoother, safer, and more energy-efficient.
Built for real-world activity and comfort, this AK kit is ideal for moderately active to active users, rehab centers, or prosthetic professionals seeking dependable components for custom above-knee limb setups.
Why a Polycentric Knee? The Four-Bar Advantage
Polycentric (four-bar) knees use a multi-linkage system to simulate anatomical knee rotation more closely than single-axis designs. This leads to:
- Improved stance-phase stability
- Shortened leg length during swing for better toe clearance
- Lower risk of tripping or stumbling
- Increased walking confidence across varied terrains
This design also reduces pressure on the residual limb, offering greater comfort for extended wear.
What’s Included in the Above Knee Kit
- Polycentric (four-bar) knee joint – durable, mechanical, and stable
- Pylon or tube adapter – for secure height adjustment
- Socket components or trial fitting elements (depending on configuration)
- Proximal adapters – for locking and alignment support
- Distal components – such as pyramid adapters or tube clamps
- Compatible with various feet, liners, and socket systems
Each component is designed for modular integration, allowing prosthetists to tailor the setup to user needs.
Key Specifications
- Material: High-strength aluminum or stainless steel
- Knee Design: Mechanical polycentric (four-bar linkage)
- Load Capacity: Typically supports 100–125 kg (varies by model)
- Mobility Grade: Ideal for K2–K3 level amputees
- Use Case: Functional daily use, gait training, and moderate activity
Trusted by Prosthetists Across Kenya
- Used in orthopedic clinics and rehab centers throughout Nairobi and Ngara
- Praised for easy alignment and patient satisfaction
- Delivered within 24hrs when you shop online near me in Kenya
- Durable under Kenyan terrain and temperature conditions
Shop Online for Above-Knee Kits – Fast Delivery in Nairobi & Nationwide
Looking to shop near me for above-knee prosthetic parts? The Above Knee Kit with Four-Bar Polycentric Knee is available throughout Kenya and can be delivered to your doorstep in Nairobi, Ngara, or upcountry—within 24hrs.
Why It’s a Game-Changer
- Enables more stable, fluid walking
- Boosts user confidence and safety
- Works for various above-knee prosthetic systems
- Easily adjustable and repairable
- Designed with affordability in mind





