{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T12:41:00Z","timestamp":1770813660428,"version":"3.50.1"},"reference-count":36,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2023,11,29]],"date-time":"2023-11-29T00:00:00Z","timestamp":1701216000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal Orthopaedic Research"],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Dual plating of comminuted distal femoral fractures allows for early patient mobilization. An additional helically shaped medial plate avoids the medial vital structures of the thigh. The aim of this study is to investigate the biomechanical competence of an augmented lateral locking compression plate distal femur (LCP\u2010DF) using an additional straight versus a helically shaped medial LCP of the same length. Ten pairs of human cadaveric femora were instrumented with a lateral anatomical 15\u2010hole LCP\u2010DF. Following, they were pairwise instrumented with either an additional medial straight 14\u2010hole LCP (group 1) or a 90\u00b0\u2010helical shape LCP (group 2). All specimens were biomechanically tested under quasi\u2010static and progressively increasing combined cyclic axial and torsional loading until failure. Initial interfragmentary axial displacement and flexion under static compression were significantly smaller in group 1 (0.11\u2009\u00b1\u20090.12\u2009mm and 0.21\u2009\u00b1\u20090.10\u00b0) versus group 2 (0.31\u2009\u00b1\u20090.14\u2009mm and 0.68\u2009\u00b1\u20090.16\u00b0), <jats:italic>p<\/jats:italic>\u2009\u2264\u20090.007. Initial varus deformation under static compression remained not significantly different between group 1 (0.57\u2009\u00b1\u20090.23\u00b0) and group 2 (0.75\u2009\u00b1\u20090.34\u00b0), <jats:italic>p<\/jats:italic>\u2009=\u20090.085. Flexion movements during dynamic loading were significantly bigger in group 2 (2.51\u2009\u00b1\u20090.54\u00b0) versus group 1 (1.63\u2009\u00b1\u20091.28\u00b0), <jats:italic>p<\/jats:italic>\u2009=\u20090.015; however, no significant differences were observed in terms of varus, internal rotation, and axial and shear displacements between the groups, <jats:italic>p<\/jats:italic>\u2009\u2265\u20090.204. Cycles to failure and load at failure were higher in group 2 (25,172\u2009\u00b1\u20096376 and 3017\u2009\u00b1\u2009638\u2009N) compared to group 1 (22,277\u2009\u00b1\u20094576 and 2728\u2009\u00b1\u2009458\u2009N) with no significant differences between them, <jats:italic>p<\/jats:italic>\u2009=\u20090.195. From a biomechanical perspective, helical double plating may be considered a useful alternative to straight double plating, demonstrating ameliorated damping capacities during flexion deformation and safer application as the medial neurovascular structures of the thigh are avoided.<\/jats:p>","DOI":"10.1002\/jor.25730","type":"journal-article","created":{"date-parts":[[2023,11,17]],"date-time":"2023-11-17T09:45:46Z","timestamp":1700214346000},"page":"886-893","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Is augmented femoral lateral plating with helically shaped medial plates biomechanically advantageous over straight medial plates?"],"prefix":"10.1002","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4357-236X","authenticated-orcid":false,"given":"Torsten","family":"Pastor","sequence":"first","affiliation":[{"name":"AO Research Institute Davos Davos Switzerland"},{"name":"Department of Orthopaedic and Trauma Surgery Lucerne Cantonal Hospital Lucerne Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0484-887X","authenticated-orcid":false,"given":"Ivan","family":"Zderic","sequence":"additional","affiliation":[{"name":"AO Research Institute Davos Davos Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ludmil","family":"Drenchev","sequence":"additional","affiliation":[{"name":"Bulgarian Academy of Sciences Institute of Metal Science \u201cAcad. A. Balevski\u201d Sofia Bulgaria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hristo K.","family":"Skulev","sequence":"additional","affiliation":[{"name":"Bulgarian Academy of Sciences Institute of Metal Science \u201cAcad. A. Balevski\u201d Sofia Bulgaria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9582-1810","authenticated-orcid":false,"given":"Till","family":"Berk","sequence":"additional","affiliation":[{"name":"AO Research Institute Davos Davos Switzerland"},{"name":"Department of Trauma University Hospital Zurich Zurich Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frank J. P.","family":"Beeres","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic and Trauma Surgery Lucerne Cantonal Hospital Lucerne Switzerland"},{"name":"Department of Health Science and Medicine University of Lucerne Lucerne Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bj\u00f6rn\u2010Christian","family":"Link","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic and Trauma Surgery Lucerne Cantonal Hospital Lucerne Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9795-115X","authenticated-orcid":false,"given":"Boyko","family":"Gueorguiev","sequence":"additional","affiliation":[{"name":"AO Research Institute Davos Davos Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Karl","family":"Stoffel","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics and Traumatology University Hospital Basel Basel 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