US Patent 7896827 Knee brace and method for securing the same

A knee brace having a frame with separate proximal and distal portions extending across an anterior side of the brace. The brace also includes a ventilated spacer element connected to the frame, and generally corresponding in size to the proximal and distal frame portions. The spacer element has a compressible core and a frictional feature disposed over the core. The frictional feature is arranged to prevent rotation of the brace on a leg of a wearer of the brace.