Hydraulic polycentric knee joint, aluminium alloy
https://www.atpsupply.org/shop/pr04-hd-s03-hydraulic-polycentric-knee-joint-aluminium-alloy-3890
https://www.atpsupply.org/web/image/product.template/3890/image_1920?unique=b0a3bba
Degree of mobility: 3
Proximal connection: pyramidal adapter
Distal connection: tube receiver
Knee bending angle: 150 °
