{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T13:00:53Z","timestamp":1792587653216,"version":"4.5.0"},"reference-count":36,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2012,4,11]],"date-time":"2012-04-11T00:00:00Z","timestamp":1334102400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2013,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>A bilateral fixed\u2010angle plate was biomechanically compared to the two currently preferred methods of osteosynthesis for transverse patella fractures. It was hypothesized that the new angle\u2010stable implant would provide a secure and sustainable fracture fixation, superior to the established standard techniques.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Twenty\u2010one identical patellae made of polyurethane foam (Sawbones<jats:sup>\u00ae<\/jats:sup>), osteotomized to create a transverse two\u2010part fracture, were fixed with modified anterior tension wiring, cannulated lag screws with anterior tension wiring or bilateral polyaxial 2.7\u2010mm fixed\u2010angle plates. The testing protocol consisted of 10,000 repetitive cycles using a non\u2010destructive physiological load between 100 and 300\u00a0N at a simulated knee flexion of 60\u00b0.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>All 21 Sawbone<jats:sup>\u00ae<\/jats:sup>\u2010patellae sustained repetitive loading up to 10,000 cycles without failing. The anterior tension wire group displayed significant displacement of the fracture gap (0.7 \u00b1 0.2\u00a0mm) during cyclic loading, while both lag screws with tension wiring and bilateral fixed\u2010angle plates showed no fracture gap widening at all (<jats:italic>p<\/jats:italic> &lt; 0.01).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The bilateral fixed\u2010angle plate and cannulated lag screws with anterior tension wiring preserved a constantly reduced fracture gap over 10,000 tensile cycles in contrast to modified anterior tension wiring, which exhibited significant widening of the gap after initial loading. Results of in vitro testing indicate that bilateral fixed\u2010angle plates provide sustainable fixation stability offering a promising new option in the treatment for transverse patella fractures.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-012-1999-1","type":"journal-article","created":{"date-parts":[[2012,4,10]],"date-time":"2012-04-10T08:46:03Z","timestamp":1334047563000},"page":"311-317","source":"Crossref","is-referenced-by-count":64,"title":["Cyclic long\u2010term loading of a bilateral fixed\u2010angle plate in comparison with tension band wiring with K\u2010wires or cannulated screws in transverse patella fractures"],"prefix":"10.1002","volume":"21","author":[{"given":"Simon","family":"Thelen","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Trauma and Hand Surgery Heinrich Heine University Hospital D\u00fcsseldorf Moorenstrasse 5 40225 D\u00fcsseldorf 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