Product indicated for the replacement or filling of fissures or bone cavities that are not intrinsic to the stability of the bone structure. It can be used in the treatment of surgical defects or bone defects that are due to traumatic bone injuries. It can be combined with autogenous bone, blood, platelet-rich plasma (PRP for its acronym in English) and / or bone marrow. Product of current-use in surgery of extremities, vertebral column and pelvis. CAGE systems are for use in cervical-anterior arthrodesis to optimize bone fusion. It is used mainly in the following cases: rupture and hernia dedisco; degenerative disc disease; Degenerative instability of the disk.