Yazar "Mutlu, Ibrahim" seçeneğine göre listele

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    Biomechanical comparison of a new handy tension band with malleolar screw, bicortical screw and conventional tension band for the fixation of transverse medial malleolar fractures
    (Turkish Joint Diseases Foundation, 2019) Kuru, Tolgahan; Akpinar, Fuat; Isik, Cengiz; Ozkilic, Recai; Ipek, Serdar; Mutlu, Ibrahim; Kizilay, Hasan
    Objectives: This study aims to compare the biomechanical features of a new handy tension hand with the malleolar screw, bicortical screw and conventional tension hand for the fixation of transverse medial malleolar fractures. Materials and methods: This study used 20 Kirschner wires, five cerclage wires, six double-hole U pins, six cortical screws, six malleolar screws, three malleolar clamps and one osteotomy set. A total of 24 tibias of two-year-old cows were obtained and stripped from soft tissue. Each tibia was cut with an electric saw at 15 cm proximal to the tibiotalar joint surface and the proximal tibia sections were discarded. A transverse fracture line was created with an asteotome on the medial malleolus. The tibias were separated into four groups with six tibias in each group. The distal tibia medial malleolar transverse fragments were fixed under guidance of fluoroscopy with the malleolar screw, bicortical screw, conventional tension band and the new handy tension band. Results: In the application of both transverse and axial force, the new handy tension band resisted higher forces in respect of catastrophic damage force being more resistant compared to the bicortical screw, malleolar screw and conventional tension band. However, in respect of the 2 mm displacement force of the forces applied in the axial and transverse sections, no difference was determined between the handy tension hand and the other three implants. Conclusion: The new handy tension band seems to be more successful when hiomechanically compared with the other implants.
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    Öğe
    Biomechanical Comparison of Single- and Double-Twist Tension Band, Cancellous Screw, and Single-Screw Tension Band Models in Medial Malleolus Fractures
    (Amer Podiatric Med Assoc, 2025) Nusran, Gurdal; Yilmaz, Onur; Mutlu, Ibrahim; Kuru, Tolgahan; Erken, H. Yener
    Background: Models using a double-twist tension band, two partially threaded cancellous screws, a single-twist tension band, and a single-screw tension band were biomechanically compared for fixation of medial malleolus fractures. Methods: All 72 composite cortical tibial bones used in the study were osteotomy suitable for medial malleolus fracture. They were divided into four groups: double-twist tension band (group 1), two partially threaded cancellous screws (group 2), single-twist tension band (group 3), and single-screw tension band (group 4), with 18 composite tibial bones in each group. Bones in each group were divided into three subgroups and subjected to biomechanical tests by applying force as tension, transverse, and axial loading. Results: In the tension and transverse loading tests, the highest mean stiffness was in groups 1 and 4. Group 4 had statistically significantly higher stiffness values than groups 2 and 3. All of the other groups had statistically significantly higher stiffness values than group 2. A statistically significant difference was found comparing group 4 (with the highest value in the axial loading test) with the other groups. No significant difference was found between groups 1 and 3 in any of the biomechanical tests. Conclusions: Tension band method did not make a difference biomechanically when applied as a double or single twist. Single-screw tension band was found to be the most stable fixation method in tension, transverse, and axial loading tests. We think that the single-screw tension band method is a stable and suitable fixation method and should find more place in current surgical practices.
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    Öğe
    Suture anchor fixation may be an alternative to tension band wiring in olecranon fractures: Finite element analysis
    (Turkish Joint Diseases Foundation, 2020) Kuru, Tolgahan; Mutlu, Ibrahim
    Objectives: This study aims to analyze and compare total deformations with tension band wiring (TBW), intramedullary screw (IS) and novel suture anchor (SA) fixation methods, and to investigate practicality of SA fixation in olecranon fractures using finite element analysis (FEA). Materials and methods: This finite element analysis study was conducted between May 2019 and October 2019. TBW, IS and SA fixation methods were compared in order to analyze fracture behavior in the ulna and humerus using FEA, which is among the mathematical methods of stress analysis. Boundary conditions were applied to the created model and total deformation amounts were compared among the methods in terms of displacement. Results: The lowest amount of displacement was obtained with TBW method (1.2095 mm), while IS method (2.7703 mm) showed the highest amount of total displacement. Total displacement was lower with SA system (2.0397 mm) compared to IS fixation. In addition, no problem was observed with SA system in terms of failure occurrence. Conclusion: According to the results of FEA, although the lowest amount of displacement was obtained with TBW, it is concluded that anchor fixation method may be an alternative with practicality and mechanical properties. However, further studies are needed to obtain more precise data.