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. 2016 Mar;9(1):17-22.
doi: 10.1007/s12178-016-9313-3.

Total shoulder arthroplasty: are the humeral components getting shorter?

Luke Harmer  1 , Thomas Throckmorton  2 , John W Sperling  3
Affiliations

Total shoulder arthroplasty: are the humeral components getting shorter?

Luke Harmer et al. Curr Rev Musculoskelet Med. 2016 Mar.

Abstract

Each generation of total shoulder arthroplasy has improved on the previous. The newest humeral component innovation is shortening the humeral component or eliminating the stem entirely to rely on stemless fixation in the humeral metaphysis. This offers theoretical advantages of preserved bone stock, less stress shielding, eliminating the diaphyseal stress riser, ease of stem removal at revision, and humeral head placement independent from the humeral shaft axis. There are a number of short term cohorts that have shown low complication rates and outcomes similar to previous generations of stemmed humeral components. Longer term and better designed studies are needed in order for short stems and stemless components to become the standard of care.

Keywords: Short stem humerus; Shoulder arthroplasty; Stemless humerus.

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