The MEMODYN is a shape memory alloy (nitinol) that once implanted, provides dynamic compression at the fusion or osteotomy site. The QUAD MEMODYN works under the same characteristics as the MEMODYN but has four legs and an open top for additional fixation.
The open top of the QUAD MEMODYN allows the MEMODYN to provide compression on top of the fusion site, as well as the four legs compressing the joint together.