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Defiance III

DonJoy Defiance sets the industry standard for Custom Made Knee Braces. A host of options allows customisation of the fit and functions, to ensure maximum protection and confidence. The ultimate in technology, materials and design. Defiance incorporates DonJoy's patented 4-Points-of-Leverage for effective support, and offers a choice of patented hinge designs.


  • Moderate to severe ACL, PCL, CI, MCL and LCL instabilities.
  • Clinically-proven 4-Points-of-Leverage System
  • Custom fabricated
  • Strong, lightweight carbon composite frame
  • Swooping thigh cuff for inner thigh clearance
  • Swiveling strap tabs to accomodate leg movement
  • Anti-migration band for enhanced brace suspension
  • Supra-Condyle pad promotes brace suspension
  • Flexion and Extension control
  • Lightweight, low profile design
  • Lifetime warranty on frame and hinges


  • Patented clinically-proven FourcePoint hinge technology
  • Over 40custom frame colors and graphics
  • Defiance III Extra includes reinforced carbon composite frame
  • PowerCaps—metal strap tab caps (recommended for contact sports)
  • High strength stainless steel gears (recommended for contact sports)
  • ACL, PCL, or Combined Instability (CI) strap configurations
  • Standard or short frames available

Also available:

Adjustable OA Defiance®

  • Designed for the active OA patient, custom made Adjustable OA
  • Defiance provides durable support for moderate to severe levels of osteoarthritis.
  • The bilateral hinge bars offer support for ligament instabilities and work in conjunction with a patented telescoping condyle pad which puts the load control in the hands of the patient.
  • The 3-Point Off-loading mechanism shifts load away from the damaged part of the knee


  • Minimum thigh: 31.8cm, (12 ½") , calf 26cm (10 ¼")
  • Maximum thigh: 97cm (38 1/8 "), calf 6.5cm (26 ¼)
FourcePoint Technology:
mp4 FR |
DonJoy Defiance III CCMI, How to measure:
mp4 EN |
mp4 EN | mp4 FR |
DonJoy - Garrett McNamara Surfing World Record 78ft Wave:
mp4 EN |
mp4 EN |
FR Catalogue 2018:

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