Dynamic orthopedic knee brace assembly

A knee brace assembly for restricting anterior translation of a wearer's tibia, the wearer also having a leg including a thigh, a knee and a leg portion below the knee, said knee brace assembly comprising:

• a. first means for engaging the wearer's thigh, said first means comprising a lateral portion positioned over the lateral side of the wearer's thigh and a medial portion positioned over the medial side of the wearer's thigh, said lateral and medial portions each having a slot extending there along;
• b. second means for engaging the wearer's leg portion below the knee;
• c. hinging means linked to said first and second means to permit pivotal movement of said first means relative to said second means;
• d. strap guiding means slidably mounted within each of said slots, said strap guiding means being arranged to slide between a proximal extreme when the wearer's leg is in flexion towards a distal extreme as the wearer extends his or her leg;
• e. biasing means resiliently biasing said moveable strap guides towards said proximal extreme;
• and,
• f. a cross-strap provided for engagement with the wearer's leg, said cross-strap comprising free ends and a length therebetween, a portion of said length comprising tibial pressure application means, said cross-strap being attachable over the wearer's leg with said tibial pressure application means located over the wearer's tibia, said cross-strap wrapping behind the wearer's knee in a crisscross manner, the free ends of said cross-strap being attachable to said strap guiding means and in response to extension of the wearer's leg said cross-strap tightening geometrically around the wearer's knee and pulling said strap guiding means from said proximal extreme towards said distal extreme thus enabling said tibial pressure application means to provide resistance to the anterior movement of the tibia.