P2

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

Rapid Bone In-growth

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.

Advanced Porous Coating

  • 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

Superior Surface Structure

Features & Benefits

  • P2 is a new proprietary Titanium Porous Coating developed exclusively by DJO Surgical
  • P2 is the first porous coating in the world wherein the non-spherical bead itself is also porous
  • P2 provides an initial “bite” or “stick” to the bone that creates micro-fractures in the trabeculae thus causing immediate bone reaction via Wolff’s law
  • 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
  • P2 exceeds the minimum tensile strength set forth by the FDA by 3 times 1,5
  • P2 has an average porosity of 60%1
  • P2 Titanium Porous Coating has been cleared by the FDA for the following applications:
    • Use on acetabular shells
    • Use on femoral hip stems
    • Cementless / Bone in-growth THA applications

Components

P2 porous coating is available on all of the following components:

  • FMP Hemispherical & Flared acetabular shells
  • FMP Revision acetabular shells
  • TaperFill hip system
  • Linear hip system
  • Revelation & Revelation microMAX hip systems

Education

  1. Data on file at DJO Surgical.
  2. Competitive data retrieved from competitors website.
  3. Beck, J.P. et al. Bone Response to Load Bearing Percutaneous Osseointegrated Implants for Amputees: A Sheep Amputation Model. 56th Annual Meeting of the Orthopaedic Research Society. Poster #2085. March 2010.
  4. Shelton, T.J. et al. Percutaneous, Osseointegrated Implants: Attachment Strength in a 12 Month Ovine Amputation Model. 57th Annual Meeting of the Orthopaedic Research Society. Poster #1055. January 2011.
  5. Bachus, K.N. et al. Bone Ingrowth and Mechanical Stability of Percutaneous, Osseointegrated Implants. 56th Annual Meeting of the Orthopaedic Research Society. Poster #650. March 2010.