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Reverse shoulder prothesis

M Oztürk, G Cunningham, N Holzer, P Hoffmeyer
Evolution of shoulder arthroplasty has led to mainly three types of implants: hemiarthroplasty, total shoulder arthroplasty and reverse shoulder arthroplasty. There is yet no clear consensus about indications for the different existing types of prothesis. The aim of this article is therefore to bring together and clarify the indications found in the current literature. Hemiarthroplasty, historically the first widely used implant, has lost much ground to total shoulder arthroplasty, and keeps its place only for specific situations...
December 17, 2014: Revue Médicale Suisse
Caroline Chebli, Philippe Huber, Jonathan Watling, Alexander Bertelsen, Ryan T Bicknell, Frederick Matsen
The semiconstrained design of the reverse arthroplasty allows loads from the humerus to challenge the fixation of the glenoid component to the scapula. We examined some of the factors affecting the quality of glenoid screw fixation, including the density of the material into which the screws are placed, the purchase of individual screws, and the direction of loading in relation to screw placement. Loads were applied by the humeral component to glenoid components with different conditions of fixation. The load to failure for each set of conditions was measured and compared statistically...
March 2008: Journal of Shoulder and Elbow Surgery
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