Actipore™ Material Introduction
Within the orthopaedic field, one of the greatest challenges has been the
permanent fixation of metal implants to bone. Various methods, such as screws,
glue, cement and porous surfaces are used today to remedy this problem. However,
none of these methods offer a completely successful solution. This unsolved
challenge often leads to costly surgical revisions and retraining graduates.
Biorthex's patented Actipore™ technology platform introduces a
leading edge solution to this age-old problem.
Actipore™ is a porous nitinol, which
is an intermetallic TiNi
molecule with excellent biological and biomechanical compatibility.
Nitinol material in its solid form, has been known and approved by the
FDA and used clinically worldwide for over a decade. Nitinol is known for its
biocompatibility and its shape memory properties.
Biorthex, with its worldwide patent protection on porous nitinol, is the
first and only company to introduce nitinol in a porous form.
Actipore™, as seen in the above picture, is a unique ultra
porous, biologically and biomechanically compatible Nitinol material, having a
porous structure made of interconnected passageways which permit bone cell
penetration, long term bone cell survival and integration throughout the
The Actipore™ range of interbody devices, as a consequence of the
isotropic interconnected porous structure and the capillary wicking forces,
actively draw essential fluids and nutrients into the implant allowing for
strong, rapid growth of newly forming bone cells throughout its ultra porous
As a result, no additional bone graft material is required, thus eliminating
the risk of associated graft site morbidity.
A low modulus of elasticity, closely resembling that of cancellous bone, as well as MRI and CT scan
compatibility, make the Actipore™ devices a welcome and advantageous
addition to physician spinal device selection.
Actipore™ devices have an approximate porosity of 65% and an
ideal average pore size of 215 microns, resulting in immediate perfusion and
strong rapid growth of newly forming bone throughout its ultra porous
scaffold. Although porous, Actipore™ has superior compressive
strength in comparison to bone, while sharing a similar modulus of elasticity,
therefore minimizing the risk of stress shielding and compromised device