3D printed locking osteosynthesis screw threads have comparable strength to machined or hand‐tapped screw threads
نویسندگان
چکیده
منابع مشابه
Implicit Modeling of Screw Threads for Bone-implant Finite Element Analysis
Introduction The development and evaluation of orthopaedic devices are commonly assisted by finite element analysis [1]. Computational models are usually simplified through approximations to enable efficient simulations, without affecting the outcome of relative comparisons between different implant designs or configurations. The physical behavior of the bonescrew interface prior to osseointegr...
متن کاملThe Shear Strength of the VLPTM Locking Osteopenia Screw versus the VLP Locking Cortical Screw in a PERI-LOCTM VLP One-Third Locking Tubular Plate Construct
Deformity correction and internal fixation during surgical treatment of Charcot Arthropathy (CA) requires strong implants capable of ensuring long-term stability and function of the foot. The purpose of this study was to determine the construct shear strength of the newly developed VLP Locking Osteopenia Screw (Smith & Nephew, Inc., Memphis, TN, USA), as compared to the VLP Locking Cortical Scr...
متن کاملThreads and or-parallelism unified
One of the main advantages of Logic Programming (LP) is that it provides an excellent framework for the parallel execution of programs. In this work we investigate novel techniques to efficiently exploit parallelism from real-world applications in low cost multi-core architectures. To achieve these goals, we revive and redesign the YapOr system to exploit or-parallelism based on a multi-threade...
متن کاملDynamic-locking-screw (DLS)–leads to less secondary screw perforations in proximal humerus fractures
BACKGROUND Loss of reduction and screw perforation causes high failure rates in the treatment of proximal humerus fractures. The purpose of the present study was to evaluate the early postoperative complications using modern Dynamic Locking Screws (DLS 3.7) for plating of proximal humerus fractures. METHODS Between 03/2009 and 12/2010, 64 patients with acute proximal humerus fractures were tr...
متن کاملAxial pullout strength comparison of different screw designs: fenestrated screw, dual outer diameter screw and standard pedicle screw
BACKGROUND The pullout strength of pedicle screws is influenced by many factors, including diameter of the screws, implant design, and augmentation with bone cement such as PMMA. In the present study, the pullout strength of an innovative fenestrated screw augmented with PMMA was investigated and was compared to unaugmented fenestrated, standard and dual outer diameter screw. METHODS Twenty f...
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ژورنال
عنوان ژورنال: Journal of Orthopaedic Research
سال: 2020
ISSN: 0736-0266,1554-527X
DOI: 10.1002/jor.24712