Total Knee Instruments


The Sulcus Line Trochlear Alignment Guide (STAG) helps reduce femoral component malrotation by improving the accuracy of Whiteside’s Line.

Allowing easy and accurate comparison to other landmarks and techniques, STAG is a reusable instrument that is fast and easy to use.

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Femoral malrotation is one of the most common technical problems leading to patient dissatisfaction and early component failure.  STAG corrects for variations in 3D alignment of the trochlear groove to more accurately isolate the rotation of the groove. This leads to better component positioning than using Whiteside's Line alone.

STAG can be used with any implant system as a simple way to accurately identify landmarks before any of the bone cuts are made. 

  • Reduces parallax errors
  • Simple and easy to use
  • Can be used with conventional instruments and computer navigation
  • Patented design (PCT/AU2014/050220)
  • Materials: Stainless Steel
  • Weight: 200g / 0.4lbs
  • Length: 200mm / 7.9in

Enztec is an MDR-certified, ISO13485 manufacturer

  • Compatible with all knee systems

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