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Orthoses· 5 min read· 01/01/2025

Long Leg Braces

Information on the anatomical coverage, purpose of use and care of long leg braces (KAFO) extending from the knee to the foot.

Main topic: Types of orthoses
Long leg orthoses: Microprocessor-controlled leg orthosis (KAFO)

Long leg braces are medical devices in the KAFO (knee-ankle-foot orthosis) class that extend from the thigh to the foot and support the knee and ankle joints together. This content explains the general features and principles of use of these devices for informational purposes.

What Are Long Leg Braces?

Orthoses are devices that provide external support to specific areas of the body. The word "long" does not refer to walking distance but describes the orthosis anatomically crossing the knee joint and extending from the thigh to the foot. These systems are classified as KAFOs and are also generally referred to as a long leg brace; they can be produced with different material and knee joint options.

These orthoses are mostly secured to the leg with a series of straps and hinges. The hinges help support the natural movement of the leg, while the straps help the device sit securely.

In Which Situations Is It Considered?

Long leg braces may come in various forms according to different needs:

  • Mechanical KAFO systems that keep the knee joint locked
  • Stance-control KAFO systems that can lock in the stance phase and release in the swing phase
  • Microprocessor-controlled KAFO systems that manage knee resistance according to sensor data

Short systems covering only the foot and ankle are AFOs (ankle-foot orthoses). Systems that also cross the hip joint are considered in a separate class as HKAFOs.

The type and features of the device may vary according to the person's condition. For this reason, selection and application of the appropriate device are carried out in line with the specialist physician's examination, prescription or medical report.

Use and Care

Regular care is important for the device to maintain its function:

  • Put on and secure the device correctly
  • Clean and dry it regularly
  • Keep it away from damp environments
  • Check it regularly and look over it for possible damage
  • Consult the relevant health professional when necessary

Application, adjustment and, when necessary, reassessment are carried out with the assessment of the relevant health professional.

This content is for informational purposes only; you should consult your physician for diagnosis and treatment.

This content is for information only and does not replace diagnosis or treatment. Applications are carried out in line with a specialist physician's prescription or medical report. Results may vary from person to person; you are advised to obtain a detailed opinion from your physician before the procedure. · Last updated: 01/01/2025