Scoria (n): porous igneous rock

Porous materials are a class of micro-structured materials associated with promoting adjacent tissue in-growth [1]. While textured and porous metals have found their way into clinical applications, the use of porous polymers, to date, has been limited in orthopaedic load-bearing applications due to the loss in mechanical properties typically associated with introducing porosity in a material.

PEEK (polyetherether ketone) is a biomaterial that has been used in spinal implant devices for over a decade due to its high strength, durability, radiolucency, and elastic modulus comparable to bone. Vertera Spine has developed a state-of-the-art technology that unites the clinical benefits of PEEK polymer and pore-structured materials: PEEK Scoria. Unlike other porous polymer materials used clinically, the PEEK Scoria biomaterial is fabricated through a proprietary processing method that seamlessly integrates a porous architecture with the solid PEEK without compromising the mechanical integrity of the material itself.

PEEK Scoria has the following properties:

  • Fully interconnected porosity that transitions to solid PEEK across 1mm
  • 2X shear strength of trabecular bone
  • Bulk fatigue strength mimics native PEEK [1, 2]
  • No medical imaging artifacts
  • Facilitates bone tissue ingrowth [1]
Bone Peek Scoria bone Peek xray

1NT Evans, FB Torstrick, CSD Lee, et. al. High-strength, surface-porous polyether-ether-ketone for load-bearing orthopedic implants. Acta Biomaterialia, 2015; 13: 159-167.

2Data on File (ED-50007). Vertera Spine, 2015.