The Polycentric Pneumatic 4 Bar Prosthetic Knee is best suited for amputees who walk at low to constant speeds and those requiring a high degree of safety.

The frame and 4 bar linkage is constructed of aluminum alloy.  The proximal attachment has an anterior and posterior slide as well as rotation adjustment.  This prosthetic knee joint can be ordered with either a pyramid adapter or lotus adapter (for knee disarticulation amputees). 

The Polycentric Pneumatic 4 Bar Knee is best suited for patients who walk at low to constant speeds and those requiring a high degree of safety.

• Swing Phase:  Pneumatic
• Stance Phase: Mechanical
• Weight Limit:  275 lbs (125 kg)
• Unit Weight:  31.04 Ounces (880 grams)
• 2 Year Warranty