TriFit TS™, proximally coated tapered wedge stem.

TriFit TS™

Conformity and versatility with stability

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TriFit TS is a unique wedge stem. Designed through global CT data for patient-fit1,2 and bone preservation, aiming to provide conformity and stability with versatility.



TriFit TS key features



Based on an optimised bi-planar geometry3,4, TriFit TS is designed for patient fit.

The design has been based on an extensive 3D analysis of global CT data1,2. The 127° CCD angle aims to fit most of the population.

There are 11 sizes available with progressive size increments. TriFit TS is engineered to preserve more bone than similar designs from other manufacturers.

The stem offers a standard and a lateralised option to allow the change in offset without compromising the leg length.



TriFit TS has an optimised proximal-to-distal ratio and proximal flare that aim to promote stability9,10. The stem is designed to fill the largest M-L dimension of the femoral canal.

Primary stability is vital to avoid early failure, but achieving biological stability can be essential for long-term THA success5

TriFit TS is proximally coated with plasma spray coating designed to provide a rough surface which aims to achieve a consistent press fit, key to primary implant stability.

Corin’s Biomimetic Cementless Technology coating is available to promote osseointegration and encourage long term biological stability6,7,8.



TriFit TS can be used through the Direct Anterior Approach (DAA), with or without leg positioning systems. Corin also provides instrumentation suitable for minimally invasive surgical approaches.

We provide a 'One tray' philosophy with rasp change only shared with the proximally filling Trifit CF™ stem.

TriFit can be used with Corin's Optimized Positioning System (OPS™), a unique pre-planning and delivery system for a truly patient specific solution.


  1. Data on file, Corin Group ltd.
  2. Lowry CJ, Vincent GR, Morton L, Simpson DJ, Collins SN (2013). Adult Hip Morphology. A CT study of femoral CCD and head offset. Presented at the ORS, January 2013 San Antonio US.
  3. Müller M, Jaberg H. (1989). Total hip reconstruction. In Evarts CM (ed): Surgery of the musculoskeletal system. 2nd ed. New York: Churchill Livingstone.
  4. Burt C., Garvin K, Otterberg E, and Jardon O. (1998). A femoral component inserted without cement in total hip arthroplasty. A study of the Tri-Lock component with an average ten-year duration of follow-up. J Bone Joint Surg Am., 80(7), pp.952-960.
  5. White C, Carsen S, Rasuli K, Feibel R, Kim P and Beaulé P, 2011. High Incidence of Migration with Poor Initial Fixation of the Accolade® Stem. Clinical Orthopaedics and Related Research®, 470(2), pp.410-417.
  6. Wood PLR, Deakin S. Total ankle replacement. The results in 200 ankles. J Bone Joint Surg (Br) 2003; 85-B:3:334.
  7. Saxler G, Temmen D, Bontemps G. Medium-term results of AMC unicompartmental knee arthroplasty. The Knee 2004; 11:39-355.
  8. Schlueter-Brust KU, Kruse S, Bontemps G. Twelve year survivorship after cemented and uncemented medial unicompartmental knee arthroplasty. 15th EFFORT Congress June 2014.
  9. Jacobs CA, Christensen CP. Progressive subsidence of a tapered, proximally coated femoral stem in total hip arthroplasty. International Orthopaedics 2009 Aug;33(4):917-22.

  10. White CA, Carsen S, Rasuli K, Feibel RJ, Kim PR, Beaulé PE. High incidence of migration with poor initial fixation of the Accolade® stem. Clinical Orthopaedics and Related Research 2012 Feb;470(2):410-7.



Surgical Technique

I1204 rev6 TriFit TS OpTech 0424 cover

The Evidence Base

I1612 Rev01 TriFit TS Evidence Base 0424 cover

Product Flyer

I1539 TriFit TS 2p flyer 130224 cover

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Important information

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