Jack PCL Brace Junior

Dynamic knee orthosis to relieve the PCL

HMV-Nr.: beantragt für Gruppe 23

Jack PCL Brace Junior


  • PCL ruptures
  • Partial ruptures and elongations of the PCL


  • Constant translation force
  • Smaller hinge with proven features:
    - Spring force can be adjusted infinitely and individually
    - Spring force can be easily increased or reduced at any time
    - Spring tension can be switched on and off without tools whilst retaining the set pressure force at the calf shell
    - Limitation in 15° increments in extension and flexion -
    - Extension limitation 0° / 15° / 30° / 45°
    - Flexion limitation 60° / 75° / 90° / 105° /120°
    - ROM possible from 0° bis 120°
    - temporary immobilisation possible
  • Optimised hinge geometry
  • Optimised shell and strap system:
    - High level of wearing comfort due to breathable, lightweight aluminium thigh shells
    - High flexibility due to adjustable, customisable thigh shells
    - Extended size system, incl. paediatric sizes
    - Modular elements that can be combined with one another
    - Anatomically shaped tibia shell to improve pressure distribution
    - Strap system can be adjusted to suit individual requirements
    - Easy handling and high level of wearing comfort

Mode of Operation

The Jack PCL Brace overcomes the gravity of the lower leg to relieve the posterior cruciate ligament. The translation force may be adjusted to the leg and weight of the patient through setting the tension on both sides of the brace. Hereby the detrimental effects of the muscle and gravitation forces can be counteracted. The slipping of the tibia into the posterior drawer position is inhibited.

The idea behind the Jack PCL Brace

The problem: Posterior drawer position caused by gravity or the activation of the ischiocrural muscles.

The solution: Constant anterior directed translation force.


  • EP 1 575 464
  • EP 1 114 619
  • EP 0 841 044
  • US 7,309,322
  • US 5,954,677
  • further patents pending