International Orthopaedics (SICOT) (2017) 41:1715–1721 DOI 10.1007/s00264-017-3498-y ORIGINAL PAPER Biomechanical evaluation of straight antegrade nailing in proximal humeral fractures: the rationale of the Bproximal anchoring point^ 1,2,3 2,3,4 3 3 Simon A. Euler & Maximilian Petri & Melanie B. Venderley & Grant J. Dornan & 1 3 5 6 Werner Schmoelz & Travis Lee Turnbull & Michael Plecko & Franz S. Kralinger & 2,3 Peter J. Millett Received: 11 November 2016 /Accepted: 24 April 2017 /Published online: 11 May 2017 The Author(s) 2017. This article is an open access publication Abstract failure for SAN constructs with the PAP (median, 450 N; range, Purpose Varus failure is one of the most common failure 200–1.000 N) compared to those without the PAP (median, modes following surgical treatment of proximal humeral frac- 325 N; range, 100–500 N; p = 0.009). SAN constructs with tures. Straight antegrade nails (SAN) theoretically provide in- press-fit proximal extensions (endcaps) showed similar median creased stability by anchoring to the densest zone of the prox- loads to failure (median, 400 N; range, 200–650 N), when com- imal humerus (subchondral zone) with the end of the nail. The pared to the undersized, commercially available SAN endcaps aim of this
International Orthopaedics – Springer Journals
Published: May 11, 2017
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