J Exp Orthop 2021 Sep 7;8(1):74. Epub 2021 Sep 7.
Institute of Orthopaedic Research and Biomechanics, Trauma Research Centre, Ulm University Medical Centre, Helmholtzstr. 14, 89081, Ulm, Germany.
Purpose: The most common femoral short stems available on the market can, in principle, be divided with regard to their anchoring concepts into a calcar loading and a shortened tapered design. The purpose of this study was to compare the primary stability and stress-shielding of two short stems, which correspond to these two different anchoring concepts.
Methods: Using seven paired fresh frozen human cadaver femurs, primary axial and rotational stabilities under dynamic load (100-1600 N) were evaluated by miniature displacement transducers after 100,000 load cycles. Read More