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The current treatment of choice is symphyseal plating, which requires extensive surgery and entirely limits physiological movement of the symphyseal joint, frequently resulting in implant failure. Therefore, we investigated the biomechanical properties of a semi-rigid implant (modified SpeedBridge\n                      <jats:sup>\u2122<\/jats:sup>\n                      ) as a minimally invasive tape suture construct for the treatment of open book fractures and evaluated the superiority of two techniques of implementation: criss-cross vs. triangle technique.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and methods<\/jats:title>\n                    <jats:p>\n                      Nine synthetic symphyseal joints were dissected creating an open book fracture. The different osteosynthesis methods (plating, modified SpeedBridge\n                      <jats:sup>\u2122<\/jats:sup>\n                      in criss-cross\/triangle technique) were then applied. All constructs underwent horizontal and vertical loading, simulating biomechanical forces while sitting, standing and walking. For statistical analysis, dislocation (mm) and stiffness (N\/mm) were calculated.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Symphyseal plating for the treatment of open book fractures proved to be a rigid osteosynthesis significantly limiting the physiological mobility of the symphyseal joint (dislocation: 0.08\u2009\u00b1\u20090.01\u00a0mm) compared to the tape sutures (dislocation: triangle technique 0.27\u2009\u00b1\u20090.07\u00a0mm, criss-cross technique 0.23\u2009\u00b1\u20090.05\u00a0mm) regarding horizontal tension (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01). Both modified SpeedBridge\n                      <jats:sup>\u2122<\/jats:sup>\n                      techniques showed sufficient biomechanical stability without one being superior to the other (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&gt;\u20090.05 in all directions).\n                    <\/jats:p>\n                    <jats:p>\n                      Considering vertical loading, no statistical difference was found between all osteosynthesis methods (caudal:\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.41; cranial:\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.61).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>\n                      Symphyseal plating proved to be the osteosynthesis method with the highest rigidity. The modified SpeedBridge\n                      <jats:sup>\u2122<\/jats:sup>\n                      as a semi-rigid suture construct provided statistically sufficient biomechanical stability while maintaining a minimum of symphyseal movement, consequently allowing ligamental healing of the injured joint without iatrogenic arthrodesis. Furthermore, both the criss-cross and the triangle technique displayed significant biomechanical stability without one method being superior.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00402-021-03968-z","type":"journal-article","created":{"date-parts":[[2021,7,6]],"date-time":"2021-07-06T05:03:36Z","timestamp":1625547816000},"page":"2235-2243","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Novel minimally invasive tape suture osteosynthesis for instabilities of the pubic symphysis: a biomechanical study"],"prefix":"10.1007","volume":"142","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9648-0998","authenticated-orcid":false,"given":"Adrian","family":"Cavalcanti Ku\u00dfmaul","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fanny","family":"Schwaabe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manuel","family":"Kistler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Clara","family":"Gennen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sebastian","family":"Andre\u00df","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher A.","family":"Becker","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wolfgang","family":"B\u00f6cker","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Axel","family":"Greiner","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,5,29]]},"reference":[{"key":"3968_CR1","doi-asserted-by":"publisher","first-page":"1707","DOI":"10.1016\/j.injury.2016.05.019","volume":"47","author":"JG Eastman","year":"2016","unstructured":"Eastman JG, Krieg JC, Routt MLC (2016) Early failure of symphysis pubis plating. 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All other authors have no conflict of interest.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"This study did not include human participants, animals or clinical data. Hence, according to our ethics committee (LMU Munich), no ethical approval is required.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}}]}}