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Title: Preparation and characterization of nitinol bone staples for cranio-maxillofacial surgery
Authors: Lekston, Zdzisław
Stróż, Danuta
Jędrusik-Pawłowska, M.
Keywords: maxillofacial surgery; nitinol bone staples; steosynthesis; shape memory alloys
Issue Date: 2012
Citation: Journal of Materials Engineering and Performance, no. 12 (2012), s. 2650-2656
Abstract: The aim of this work was to form NiTi and TiNiCo body temperature activated and superelastic staples for clinical joining of mandible and face bone fractures. The alloys were obtained by VIM technique. Hot and cold processing was applied to obtain wires of required diameters. The martensitic transformation was studied by DSC, XRD, and TEM. The shape memory effects were measured by a bend and free recovery ASTM F2082-06 test. The superelasticity was recorded in the tension stress-strain and by the three-point bending cycles in an instrument equipped with a Hottinger force transducer and LVDT. Excellent superelastic behavior of TiNiCo wires was obtained after cold working and annealing at 400-500 C. The body temperature activated shape memory staples were applied for fixation of mandibular condyle fractures. In experiments on the skull models, fixation of the facial fractures by using shape memory and superelastic staples were compared. The superelastic staples were used in osteosynthesis of zygomatico-maxillo-orbital fractures.
DOI: 10.1007/s11665-012-0372-3
ISSN: 1059-9495
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