A back plate includes an upper portion, a lower surface defining a plane, a first side, a second side, a plurality of first static attachment elements configured to releasably connect to legs of the compression device, and a plurality of second static attachment elements configured to releasably connect to legs of the compression device. Each of the first and second sides can include one of the plurality of first static attachment elements and one of the plurality of second static attachment elements. The distance between one of the plurality of second static attachment elements on the first side and one of the plurality of second static attachment elements on the second side is greater than a distance between one of the plurality of first static attachment elements on the first side and one of the plurality of first static attachment elements on the second side.