Clinical Brochure, EN
Affinis Short
Affinis Short is an anatomic stemless shoulder prosthesis. Being bone preserving and cementless, it features advanced materials as bionit ceramic for humeral heads and vitamin-E polyethylene with RM titanium coating for the uncemented glenoid.
Established
The best shoulder anatomic stemless implant with more than 10 years of clinical experience and excellent registry data [7] and 10A* ODEP rating
Uncompromised design
Defined by pioneering implant design and advanced materials. The stable anchoring [2], the anatomical head design [1] and the wear resistant vitamys-ceramic articulation bearing [3] redefine the stemless anatomic surgery
Isoelastic cement-free capability with the rm coating
“Titanium particles embedded on the glenoid baseplate backside enable cementless fixation offering load force transmission mimicking native bone”
About
As a forerunner of stemless shoulder prostheses, Affinis Short is defined by a ground-breaking implant design that combines the advantages of simple, anatomical reconstruction without major bone loss and, thanks to the coating of the component, allows completely cementless anchorage in the humerus and glenoid.
Affinis Short is less invasive than stemmed prostheses thanks to stemless, metaphyseal anchorage. The stable primary anchorage [2, 8] combined with bioactive calcium phosphate coated stem leads to a secure secondary stability [4, 5, 6]. In addition, the enhanced glenoid vitamys design reduces the rocking horse effect [2]. The cementless fixation eliminates the risk of thermal damage to the surrounding bone. The sophisticated anchorage design allows straightforward stem and glenoid extraction, with Important bone stock preservation.
Affinis Short has an established primary procedure with 10 years of clinical experience and excellent registry data and is defined by pioneering implant design as well as by advanced materials. The stable anchoring [2], the anatomical head design [1] and the wear resistant vitamys-ceramic articulation bearing [3] underline these principles. It’s uncompromising in the placement of the prosthesis as well as in the size gradation of the heads. This results in an anatomical reconstruction [1], which is fast and easy to revise.
A straightforward set concept and a clever instrumentation simplify the workflow during implantation. Furthermore, all surgical steps are instrument guided, thereby reproducible results can be achieved.
eIFU-Mathys and further documents available here
[1] Koch M, Frankewycz B, Voss A, Kaeaeb M, Herrmann S, Alt V, Greiner S. 3D-Analysis of the Proximal Humeral Anatomy Before and After Stemless Shoulder Arthroplasty-A Prospective Case Series Study. J Clin Med. 2021 Jan 12;10(2):259.
[2] Data on file: 07_02 Test Conclusion Affinis Total_V01.
[3] Alexander JJ, Bell SN, Coghlan J, Lerf R, Dallmann F. The effect of vitamin E–enhanced cross-linked polyethylene on wear in shoulder arthroplasty-a wear simulator study. J Shoulder Elbow Surg. 2019 Sep;28(9):1771-1778.
[4] Karssiens TJ, Gill JR, Sunil Kumar KH, Sjolin SU. Clinical results and survivorship of the Mathys Affinis Short, Short Stem Total Shoulder Prosthesis. Bone Jt Open. 2021 Jan 22;2(1):58-65
[5] McMillan TE, Neilly DW, Khan LAK, Cairns D, Barker SL, Kumar K, Midterm. Clinical and Radi-ological Survivorship of a Stemless Total Shoulder Arthroplasty. J Shoulder Elbow Surg. 2021 Dec;30(12):2795-2803.
[6] Jordan RW, Kelly CP, Pap G, Joudet T, Nyffeler RW, Reuther F, Irlenbusch U. Mid-term results of a stemless ceramic on polyethylene shoulder prosthesis - A prospective multicentre study. Shoulder & Elbow 2021, Vol. 13(1) 67–77.
[7] National Joint Registry for England, Wales, Northern Ireland and the Isle of Man. The latest report can be found at: www.njrreports.org.uk
[8] Bell SN and Coghlan JA. Short stem shoulder replacement. Int J Shoulder Surg, 2014. 8(3): 72-75.
Affinis Short with RM Glenoid
View of glenohumeral joint with Affinis Short and RM glenoid
View of scapula with RM glenoid
RM uncemented glenoid
Sizing and Options
6 stem sizes and 8 bionit ceramic head sizes available
Glenoid available both in cemented and uncemented version, 4 sizes each
Resources
Product manufactured by Mathys Ltd Bettlach
Please note that not all products are available and registered in every market. Please contact your Enovis’ Sales Representative for any further information.
Mathys Ltd Bettlach and Limacorporate S.p.A. are affiliates of Enovis Corporation.
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