{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,20]],"date-time":"2025-02-20T05:23:21Z","timestamp":1740029001241,"version":"3.37.3"},"reference-count":20,"publisher":"Georg Thieme Verlag KG","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Handchir Mikrochir Plast Chir"],"published-print":{"date-parts":[[2025,2]]},"abstract":"<jats:title>Zusammenfassung<\/jats:title><jats:p>\n          Hintergrund Die Einteilung der distalen Radiusfraktur erfolgt in der\n                    klinischen Praxis h\u00e4ufig anhand der vermuteten Unfallmechanismen in\n                    \u201eExtensionsfrakturen\u201c nach Colles oder \u201eFlexionsfrakturen\u201c nach Smith. H\u00e4ufig\n                    liegt nach radiologischen Kriterien eine Flexionsfraktur vor, obwohl die\n                    Patienten eindeutig einen Extensionsmechanismus beschreiben. Auch biomechanische\n                    Untersuchungen lassen vermuten, dass ein Unfall in Extension des Handgelenkes\n                    eine \u201eFlexionsfraktur\u201c bedingen kann. Das Verst\u00e4ndnis zu Entstehung dieser\n                    Fraktur ist unzureichend.<\/jats:p><jats:p>\n          Material und Methoden Zur Beantwortung der Frage, inwieweit\n                    \u201eFlexionsfrakturen\u201c in Extensionsstellung des Handgelenks entstehen k\u00f6nnen,\n                    wurden vorhandene Daten von experimentell erzeugten Frakturen ausgewertet. Zur\n                    Verf\u00fcgung standen Parameter von nicht formalinfixierten, unbehandelten\n                    Humanpr\u00e4paraten, die im Zeitraum 01.01.2016\u201331.12.2021 f\u00fcr Osteosynthesekurse\n                    frakturiert wurden. Sowohl die physikalischen Parameter der Frakturerzeugung,\n                    als auch die biologische Beschreibung der verwendeten Pr\u00e4parate wurden mit den\n                    radiologischen Kriterien anhand von R\u00f6ntgen und Computertomographie\n                    korreliert.<\/jats:p><jats:p>\n          Ergebnisse 122 Pr\u00e4parate mit vollst\u00e4ndigem Datensatz wurden ausgewertet,\n                    hierunter fanden sich radiologisch 17 Flexionsfrakturen (13,9%). 10\/17 wurden\n                    unter einem Extensionsmechanismus erzeugt, bei einem mittleren Extensionswinkel\n                    von 86,3\u00b0 (im Vergleich zu 90,5\u00b0 in der Gruppe der Extensionsfrakturen). Bezogen\n                    auf die 10 F\u00e4lle von radiologischen Flexionsfrakturen unter\n                    Extensionsmechanismus lag h\u00e4ufiger eine Pronationsstellung im Handgelenk (6\/10)\n                    vor als eine Supinationsstellung (1\/10). Flexionsfrakturen zeigten im Mittel\n                    eine niedrigere potentielle Energie im Moment der Frakturerzeugung mit 168,0\n                    Joule, gegen\u00fcber 185,2 Joule bei Nicht-Flexionsfrakturen.<\/jats:p><jats:p>\n          Schlussfolgerungen Die Hypothese, dass eine als \u201eFlexionsfraktur\u201c nach\n                    Smith beschriebene Fraktur auch im Rahmen eines Unfalls mit\n                    Extensionsmechanismus entstehen kann, konnte durch die Analyse vorhandener\n                    Frakturpr\u00e4parate best\u00e4tigt werden. Dieser Erkenntnis sollte durch gezielte\n                    biomechanische Untersuchungen mit fokussierter Fragestellung weiter nachgegangen\n                    werden.<\/jats:p>","DOI":"10.1055\/a-2411-9237","type":"journal-article","created":{"date-parts":[[2024,10,21]],"date-time":"2024-10-21T23:12:33Z","timestamp":1729552353000},"page":"62-70","source":"Crossref","is-referenced-by-count":0,"title":["Die Flexionsfraktur des distalen Radius bei Extensionsmechanismus im\n                Handgelenk"],"prefix":"10.1055","volume":"57","author":[{"given":"Christopher","family":"Selle","sequence":"additional","affiliation":[{"name":"Klinik f\u00fcr Unfallchirurgie, Orthop\u00e4die und Handchirurgie,\n                    Lukaskrankenhaus Neuss, Rheinlandklinikum, Neuss, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Latz","sequence":"additional","affiliation":[{"name":"Klinik f\u00fcr Unfall- und Handchirurgie, Universit\u00e4tsklinikum D\u00fcsseldorf,\n                    D\u00fcsseldorf, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Denis","family":"Friesen","sequence":"additional","affiliation":[{"name":"Klinik f\u00fcr Unfallchirurgie, Orthop\u00e4die und Handchirurgie,\n                    Lukaskrankenhaus Neuss, Rheinlandklinikum, Neuss, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael","family":"Sch\u00e4del-H\u00f6pfner","sequence":"additional","affiliation":[{"name":"Klinik f\u00fcr Unfallchirurgie, Orthop\u00e4die und Handchirurgie,\n                    Lukaskrankenhaus Neuss, Rheinlandklinikum, Neuss, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2024,10,21]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"209","DOI":"10.1111\/os.12045","article-title":"Distal Radius Fractures: An Epidemiological Review","volume":"5","author":"KO T Koo","year":"2013","journal-title":"Orthop Surg"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"413","DOI":"10.1007\/s10039-016-0177-y","article-title":"Distale Radiusfraktur","volume":"18","author":"R Lippisch","year":"2016","journal-title":"Trauma Berufskrankh"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"462","DOI":"10.1016\/S0020-1383(03)00117-7","article-title":"The annual incidence and seasonal variation of fractures of the distal radius in\n                    men and women over 25 years in Dorset, UK","volume":"35","author":"P W Thompson","year":"2004","journal-title":"Injury"},{"key":"ref5","doi-asserted-by":"publisher","first-page":"665","DOI":"10.3238\/arztebl.m2021.0238","article-title":"The Incidence of Fractures Among the Adult Population of Germany \u2013 an Analysis\n                    From 2009 through 2019","volume":"118","author":"M Rupp","year":"2021","journal-title":"Dtsch Arztebl Int"},{"key":"ref6","doi-asserted-by":"publisher","first-page":"691","DOI":"10.1016\/j.injury.2006.04.130","article-title":"Epidemiology of adult fractures: A review","volume":"37","author":"C M Court-Brown","year":"2006","journal-title":"Injury"},{"key":"ref7","doi-asserted-by":"publisher","first-page":"93","DOI":"10.1007\/s00132-016-3347-5","article-title":"Distale Radiusfraktur","volume":"46","author":"F Unglaub","year":"2017","journal-title":"Orthop\u00e4de"},{"key":"ref9","doi-asserted-by":"publisher","first-page":"595","DOI":"10.1007\/s00402-020-03405-7","article-title":"Biomechanical considerations on a CT-based treatment-oriented classification in\n                    radius fractures","volume":"140","author":"W Hintringer","year":"2020","journal-title":"Arch Orthop Trauma Surg"},{"key":"ref10","doi-asserted-by":"publisher","first-page":"2435","DOI":"10.1002\/jor.23556","article-title":"Smith\u2019s fracture generally occurs after falling on the palm of the hand","volume":"35","author":"Y Matsuura","year":"2017","journal-title":"J Orthop Res"},{"key":"ref11","doi-asserted-by":"publisher","first-page":"150","DOI":"10.1055\/s-2002-33682","article-title":"Distal radius fractures and concomitant lesions. 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