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protect.4 evo

4-point knee orthosis

  • Excellent grip
  • Simple and correct fastening

Shop online  Medical specifications

4-point knee orthosis for control of anterior and posterior tibial translation

The protect.4 evo is a functional knee orthosis.
The product is exclusively to be used for the orthotic fitting of the knee and only on intact skin.


Product benefits

  • Polycentric hinges

  • Flexible buckles made of plastic

  • The buckles are flexible on the ends. This ensures an excellent grip.

  • Numbered straps ensure a simple and correct fastening

How does it work?/Mode of action

Functional rigid brace with limitation of flexion / extension:
extension limitation at: 0°, 10°, 20°, 30°, 45°
flexion limitation at: 0°, 10°, 20°, 30°, 45°, 60°, 75°, 90°
immobilisation at: 0°, 10°, 20°, 30°, 45°
Optimal stabilisation due to 4-point principle
Limitation of anterior and posterior tibial glide
Stabilisation of the collateral ligament
Prevention of hyperextension through limitation of Range of motion
Reduction of medial rotation

Donning/fitting instructions

Open all the straps. Sit on the edge of a chair, pull the brace up the affected leg and flex your knee to 45°. Position the joints so that the
centres of the hinges (extension wedges) are on a level with the top edge of the kneecap.
Make sure that the brace is not twisted on your leg.
First fasten the lower front calf strap, then the upper back thigh strap. Keep your knee in a flexed position and push both joints towards the back of the leg.
Now fasten the lower back thigh strap.
Make sure that you do not have the hinge joints positioned in front of the midline of the leg.
Now fasten the upper front calf strap.
Then the upper back calf strap, and finally the front thigh strap.
Bend your knee slightly a few times and refasten the straps again in the order described above to prevent the brace slipping.


Standard colours

Material components

Avional, Velours, Polyester, PU foam




Medical specifications


  • Nonsurgical / postoperative after cruciate ligament ruptures (isolated or with accompanying injuries)
  • Nonsurgical / postoperative after collateral ligament ruptures
  • Nonsurgical in the case of knee instability (isolated or combined)
  • Postoperative after meniscus intervention
  • Postoperative after cartilage intervention


  • None known at present

Further information

File download

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