The Trigon® Stand – Alone Wedge Fixation System for use in both Evans and Cotton Osteotomies offers correction and superior fixation without the need for plating. 

  • The Trigon® also offers a 3-D printed medical grade titanium alloy (TI-6AI-4V) featuring an anatomic design with a three-dimensional scaffold imitating cancellous bone allowing for blood, bone integration and a biologic additive if desired.
  • Both wedge designs offer integrated screws to maintain implant stability and fusion.

  • The wedge will be the second lower extremity implant to be Structurally Encoded for Unique Device Identification (UDI) with a patented tantalum structural encoded identifier. 
  • The wedge uses the highly advanced interbody fusion material, PEEK-OPTIMA® HA Enhanced compound (Hydroxyapatite). 
  • By utilizing the PEEK-OPTIMA® HA Enhanced compound, the device system takes advantage of the material’s osteoconductive properties that promote bidirectional bone healing and improved fixation without introducing material-related bio-incompatibility reactions.

*Titanium wedges will be available in April 2021.

  • The smooth back surface design reduces soft tissue irritation in addition to being leveled to the osteotomy site without the need for additional plate fixation.
  • The wedges are available in multiple sizes and footprints addressing unpredictable anatomical circumstances providing a precise and reliable correction.
  • The ergonomic instrumentation allows for accurate insertion and precise screw placement.


Download the Trigon Sales Information Sheet

Download the Trigon Surgical Technique Guide

Cotton PEEK Implants
Part NumberDescription
COP-16-16-06PEEK Small Cotton Wedge 6mm
COP-16-16-07PEEK Small Cotton Wedge 7mm
COP-16-16-08PEEK Small Cotton Wedge 8mm
COP-18-20-06PEEK Large Cotton Wedge 6mm
COP-18-20-07PEEK Large Cotton Wedge 7mm
COP-18-20-08PEEK Large Cotton Wedge 8mm
Evans PEEK Implants
Part NumberDescription
EVP-16-18-06PEEK Small Evans Wedge 6mm
EVP-16-18-08PEEK Small Evans Wedge 8mm
EVP-16-18-10PEEK Small Evans Wedge 10mm
EVP-16-18-02PEEK Small Evans Wedge 12mm
EVP-18-20-06PEEK Medium Evans Wedge 6mm
EVP-18-20-08PEEK Medium Evans Wedge 8mm
EVP-18-20-10PEEK Medium Evans Wedge 10mm
EVP-18-20-12PEEK Medium Evans Wedge 12mm
EVP-20-22-06PEEK Large Evans Wedge 6mm
EVP-20-22-08PEEK Large Evans Wedge 8mm
EVP-20-22-10PEEK Large Evans Wedge 10mm
EVP-20-22-12PEEK Large Evans Wedge 12mm
Part NumberDescription
WSC-25-102.5mm dia. 10mm long locking screw
WSC-25-122.5mm dia. 12mm long locking screw
WSC-25-142.5mm dia. 14mm long locking screw
WSC-25-162.5mm dia. 16mm long locking screw
WSC-25-182.5mm dia. 18mm long locking screw
WSC-25-202.5mm dia. 20mm long locking screw
WSC-25-222.5mm dia. 22mm long locking screw
WSC-25-242.5mm dia. 24mm long locking screw
WSC-25-262.5mm dia. 26mm long locking screw
WSC-25-282.5mm dia. 28mm long locking screw
WSC-25-302.5mm dia. 30mm long locking screw

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