protect.4 OA knee brace

  • Exact and effective valgus/varus pressure
  • Cushioned frame padding
  • Ultraflat and very light weight


protect.4 OA is a brace for varus/valgus pressure relief. The product is exclusively to be used for the orthotic fitting of the knee and only on unbroken skin.

Product benefits:

  • Relief of the lateral or medial compartment using the 3-point-principle
  • Stabilisation of the knee joint via the 4-point-stabilisation-principle
  • Flat and lightweight frame design
  • Anatomically pre-moulded, twist-resistant frame geometry
  • Reliable varus/valgus articulations located close to the hinge
  • Numbered straps provide easy and secure usage
  • Padding set for individual patient adaption
  • Wedge set for flexible extension and flexion limitation


  • Extension: 0°, 10°, 20°, 30°, 45°
  • Flexion: 0°, 10°, 20°, 30°, 45°, 60°, 75°, 90°
  • Immobilisation: 0°, 10°, 20°, 30°, 45°

Intended purpose:

protect.4 OA is a rigid brace for relief and stabilisation of the knee joint.

Material Composition

Aluminium, Polyamide, Polyurethane

Washing Instructions

Do not bleach Do not dry clean Do not iron Hand wash No drier Wash 30
Do not bleach Do not dry clean Do not iron Can be washed by hand at 30 degrees. Do not tumble dry Wash 30


All indications requiring unicompartimental relief by 3 point principle and additional physiological guidance and stabilization by 4 point principle and if necessary limitations of Range of motion such as:

  • Severe medial or lateral gonarthrosis (at least level III) combined with ligament instability
  • Unicompartmental relief at serve gonarthrosis before HTO (brace test)
  • Cartilage surgery or chondroplasty
  • Meniscus intervention

Contra Indications

Combined lateral and medial osteoarthitis


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