Parmaksızoğlu, FatihKılıç, SinanÇetin, Onur2024-05-172024-05-172024Parmaksızoğlu, F., Kılıç, S. ve Çetin, O. (2024). A novel model of locking plate and locking spongious screw: a biomechanical in vitro comparison study with classical locking plate. Journal of Orthopaedic Surgery and Research, 19(1). http://dx.doi.org/10.1186/s13018-024-04700-41749-799Xhttp://dx.doi.org/10.1186/s13018-024-04700-4https://hdl.handle.net/20.500.12511/12479Background: Locking plates are commonly used for the fixation of comminuted, periprosthetic and osteoporotic bone fractures. These plates are secured to the bone with screws, creating a stable connection with fixed angle between the plate and the screws. In this biomechanical in vitro study, our aim is to evaluate and compare the novel locking plate-locking spongious screw model with FDA approved classical locking plate. Methods: Sawbone PCF-15 osteoporotic bone model was utilized to simulate osteoporotic bone conditions. Two screws were used to attach both the classical locking plate and the novel locking plate-locking spongious screw model to these bone models. The attachment strength of the screws to the bone blocks was measured by pull-out tests. Results: Novel locking plate-locking spongious screw model exhibited an 84.38% stronger attachment to the osteoporotic bone model compared to the current locking plate model. Conclusions: In conclusion, one of the important problems in the locking plates which is the high Pull-out risk of the locking spongious screws can been resolved with our proposed new model and has a chance of having a better purchase especially in osteoporotic bones.enAttribution 4.0 Internationalinfo:eu-repo/semantics/openAccessLocking PlatesPlate FixationPull-Out FailureScrew FailureArticle19110.1186/s13018-024-04700-4Q20012018025000032-s2.0-8519028915138610006Q1