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We base our lower limb designs on different K-Levels that amputees are classified under by their prescribing physician.

Below is a visuals to help understand what patient activity levels or K-Levels are:

Description of K-Levels


The Prosthesis Will Be Determined By An Amputee's K-Level 

K-levels are used by the Centers for Medicare & Medicaid Services (CMS) to ensure uniformity in determining which prosthetic devices are medically necessary for each patient. For example, if the physician feels the amputee has the potential to be able to walk around the house, but they will not have the strength or ability to walk on uneven surfaces or to climb curbs and stairs, they would be rated as a household ambulator (walker), ability level K1.*






BMK2 - Mechanical Knee


Everyday Freedom

Thanks to its lightweight, compact design, the BMK2 is helping people regain their independence and their confidence. The BMK2 is a simple and affordable mechanical knee that provides stability, security and easy, smooth walking for K2 users.

Stance Flexion provides additional shock absorption & cushioning for greater comfort. Because the BMK2 is lighter and easier to use, it requires less energy for movement which leads to longer, more enjoyable walks.


Understanding Prosthetics

Whether you are a new amputee or have lived with amputation for awhile, prosthetic technology can be overwhelming. We explain some of the technology behind today’s prosthetics and how Blatchford uses the natural working of the human body to influence the design of our products.

BKA Understanding Prosthetics

Join Your Fellow Ambassadors of Mobility!

Our Ambassadors are busy telling their stories and helping others in their community. They are raising public awareness around limb loss and care about making a positive difference in people's lives.

They are inspirational, motivational and unstoppable positive forces in the lower limb amputee community!

Please consider joining our Ambassadors of Mobility! We'd love to have you share your experience as a caregiver in the amputee community!

The Blatchford Community

For over 130 years Blatchford has designed and produced some of the world's most advanced artificial limbs and mobility solutions.

Normal U275

Introducing Elite Blade

  • Ideal for cross training, running, bat and ball sports
  • Controlled acceleration and deceleration
  • Ease of alignment incl. A/P slide
  • Variable spring stiffness heel wedge
  • Heel stiffness adjustment