Preservation in motion

Affinis Short – Number 1 in stemless shoulder endo­prostheses 1, 2

Artboard 1

The latest registry data shows that the Affinis Short tops the list of the most frequently implanted stemless shoulder endoprostheses. 1, 2 Implantation in just a few steps with simple 
instruments along with the long 
service life of the materials 3 and excellent clinical outcomes 1 
are key to ensure its strong acceptance on the market. 

The Affinis Short is a stemless shoulder endoprosthesis with a design that allows restoration of glenohumeral geometry 4

The short stem has a large-pored titanium structure with a calcium phosphate coating, which promotes bone integration and contributes to good secondary stability. 5 Its metaphyseal anchoring is less invasive than with conventional stem prostheses. 4 The stem geometry allows bone-sparing revision, for example following a rotator cuff tear or an infection.

Humeral ceramic heads made in-house have been in clinical use at Mathys since 2000. Ceramic has a high degree of biocompatibility. 6 The size graduations of the implants allow a more precise reconstruction of glenohumeral geometry 4. The glenoid is made up of the vitamin E-stabilised, highly cross-linked polyethylene vitamys. In combination with a ceramic head, this reduces polyethylene wear compared to conventional tribological pairings. 4, 7 Because it is completely free of nickel, cobalt and chrome, the Affinis Short shoulder prosthesis is also suitable for patients who are sensitive to these materials.

The instruments for the Affinis Short are easy to work with. Resecting the humeral head facilitates access to the glenoid, allowing more precise implantation of the total prosthesis.

The Affinis Short currently leads the way:

  • The most frequently implanted stemless prosthesis in registries
    in Australia (AOANJRR) 2 and England (NJR) 1
  • Half the average revision rate in the NJR 1 
  • Over 10’000 implanted worldwide since 2009 4

    With the Affinis Short, we are responding to users’ needs and fulfilling the company’s promise of «Preservation in motion»


    Affinis Short

    Learn more about the product on our company website.



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    1. National Joint Registry for England, Wales, Northern Ireland and the Isle of Man. 15th Annual Report 2018; p. 166.
    2. Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR). Hip, Knee & Shoulder Arthroplasty: 2018 Annual Report; p. 326–327.
    3. Lerf R, Zurbrugg D, Delfosse D. Use of vitamin E to protect cross-linked UHMWPE from oxidation. Biomaterials. 2010;31(13):3643–8.
    4. Mathys data on file
    5. Schwarz ML, Kowarsch M, Rose S, et al. Effect of surface roughness, porosity, and a resorbable calcium phosphate coating on osseointegration of titanium in a minipig model. J Biomed Mater Res A. 2009. 89(3):667–78.
    6. Barnes DH, Moavenian A, Sharma A, Best SM. Biocompatibility of Ceramics. ASM Handbook, 2012. 23
    7. Beck M, Delfosse D, Lerf R, et al. Oxidation Prevention with Vitamin E in a HXLPE Isoelastic Monoblock Pressfit Cup: Preliminary Results. In: Knahr K (ed.) Total Hip Arthroplasty. Heidelberg: Springer, 2012; p. 21–31.


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