PURpillars™ Advanced Collagen Matrix Strip is a sterile bone graft composed of purified fibrillar Type I collagen and 60% hydroxyapatite (HAP) – 40% tricalcium phosphate (TCP) resorbable granules. This device is safe and has excellent biocompatibility. After it is implanted, the graft resorbs and is later replaced by natural bone. PURpillars™ Advanced Collagen Matrix Strip is indicated for use in bony voids or gaps that are not intrinsic to the stability of the bony structure. The product should be gently packed into bony voids or gaps of the skeletal system (i.e., the extremities, posterolateral spine and pelvis). These defects may be surgically created osseous defects or osseous defects created from traumatic injury to the bone. The product provides a bone void filler that resorbs and is replaced by the growth of new bone during the healing process. In weight bearing situations, the graft is to be used in conjunction with internal or external fixation devices.
A sterile bioabsorbable device made of synthetic bone substitute materials (e.g., ceramics such as tricalcium phosphate or hydroxyapatite) combined with bone growth factors (e.g., bovine collagen) implanted into the body to provide osteoconductive bone-tissue scaffolds to replace bone lost through trauma, surgery, or pathological conditions (e.g., osteoporosis). It is used to fill cystic defects, repair fractures, and/or extend autogenous bone grafts. It is typically provided as cancellous blocks, chips, or granules of varying sizes, or mouldable materials.