P²™

P², a new proprietary Titanium Porous coating by DJO Surgical, is the first porous porous coating in the world wherein the non-spherical bead itself is also porous – giving it its name, P-Squared (P²). Consisting of variability in pore sizes, very similar to a “lava rock” type of structure, P2 aids in the apposition of bone for superior in-growth results.

Rapid Bone In-growth

P², backed by the largest porous coating animal study in the world, is able to create instant micro-fractures in the trabeculae upon initial bite to the bone, which causes an instantaneous bone in-growth reaction.³ By measuring the axial pull-out force required, P² demonstrated a minimum 250 pounds of force needed to dissociate the implant from the bone upon immediate implantation at time zero.⁴

Advanced Porous Coating

P² consists of two ranges of pore sizes – Inter-and Intra-bead. This variability in pore size range is what gives P² a distinct advantage in accommodating rapid bone in-growth.

• Inter-bead pore size: pore size between each non-spherical bead = 200-525 microns (μm)¹
• Intra-bead pore size: pore size within each non-spherical bead = 25-65 microns (μm)¹
• Average porosity of 60%¹

Superior Surface Structure & Texture

With the unique structure & material characterization, P2 porous coating has a higher surface roughness than spherical beads and/or newer generations of non-spherical beads, providing for more bone apposition and percent bone in-growth.^1,2  The average P² tensile strength exceeds the minimum tensile strength set forth by the FDA by three times.^1,5