Dual Mobility2x

Dual Mobility™


Advanced bearing acetabular system

Read More


A versatile acetabular system with advanced design features, proven clinical performance1,2,3 and a wide range of shells and bearings designed to provide a patient-matched solution.

Advanced design

The Trinity optimised taper is designed for easy, accurate liner insertion without the use of dedicated alignment instruments and to provide excellent liner security4.

A highly polished PRIME™ rim is designed to reduce psoas impingement and soft tissue irritation if full bone coverage cannot be achieved.

Trinity-i™ shells are designed for improved range of motion*5,6,7 and joint stability8.

*Compared to equivalent size standard Trinity shell


Trinity shells have a Titanium plasma spray coating providing a roughened surface and consistent press fit, keys to primary implant stability.

If required, strategically positioned screw holes provide the opportunity for supplementary mechanical fixation.

Corin's biomimetic coating is tailored for rapid resorption9 and designed to promote long term stability.





Shells are available in various designs and are compatible with a wide range of high performance bearings, including ECiMa™ vitamin-E polyethylene and Trinity Dual Mobility, meaning different patient needs can be met with one system.

Select Trinity during preoperative planning of THAs using Corin OPS™ for a patient-specific, optimised solution.


  1. http://www.odep.org.uk.
  2. National Joint Registry 17th Annual Report 2020.
  3. Australian Orthopaedic Association National Joint Replacement Registry 20th Annual Report 2019.
  4. Data on file, Corin Group Ltd.
  5. Data on file. Corin Group. Ltd.
  6. Range of Motion and Stability in Total Hip Arthroplasty With 28-, 32-, 38-, and 44-mm Femoral Head Sizes. Burroughs, Brian; Hallstrom, Brian; Golladay, Gregory; Hoeffel, Daniel; Harris, William. February 2005The Journal of Arthroplasty 20(1):11-9. DOI: 10.1016/j.arth.2004.07.008 TY  - JOUR.
  7. Biomechanics of Large Femoral Heads What They Do and Don’t Do. Crowninshield, Roy D, PHD*; Maloney, William J, MD†; Wentz, Douglas H*; Humphrey, Steve M*; Blanchard, Cheryl R, PHD. Section Editor(s): Hanssen, Arlen D MD, Guest Editor Author Information Clinical Orthopaedics and Related Research®: December 2004 - Volume 429 - Issue - p 102-107. doi: 10.1097/01.blo.0000150117.42360.f9.
  8. Head size and dislocation rate in primary total hip arthroplasty. Somesh P Singh; Haresh P Bhalodiya. Indian J Orthop. 2013 Sep-Oct; 47(5): 443–448. doi: 10.4103/0019-5413.118198.
  9. Evaluation of implant fixation in an ovine model – Corin Professor W.R. Walsh Ph.D.


Surgical Technique

I981 Rev14 Trinity Optech EN cover

The Evidence Base

I1608 Rev2 Trinity Evidence Base 0424 cover

Product Flyer

I1538 Trinity 2p flyer 191219 Rev 01 0424 cover

Request more information

Important information

Not all products are available or cleared for distribution in all markets. For more details please contact us.

** Trinity™ non ECiMa, excluding non-CAP coated cups = 7A*