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Title: Perforated H-beam implant can be used in femoral neck fracture
Authors: Jafarov, Afgan
Elibol, Fatma Kübra Erbay
Alizadeh, Chingiz
Gülşen, Mahir
Toğrul, Emre
Demir, Teyfik
Keywords: Biomechanical study
cannulated screws
perforated "H" beam implant
Issue Date: Mar-2019
Publisher: SAGE Publications Ltd
Source: Jafarov, A., Erbay Elibol, F. K., Alizadeh, C., Gülşen, M., Toğrul, E., and Demir, T. (2019). Perforated H-beam implant can be used in femoral neck fracture. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 233(3), 354-361.
Abstract: This biomechanical study evaluated comparison osteosynthesis of the femoral neck fracture model by 3 cannulated screw implants and new perforated H beam implants under different loading conditions with 45 third generation right proximal femur bones. A standardized Pauwels Type 3 of the femoral neck fracture was performed in the femur models. For assessing the rigidity and strength of fixation methods, the proximal femur bones after their osteosynthesis were then mechanically tested in axial compression, and torsional and dynamic axial compression loading. To determine the structural advantage of the new implant system, perforated and nonperforated new implant systems were comparing about pull out performance. When loading the samples, photographs were taken continuously. The reference parameters were described and measured from unloaded and loaded photographs of the static and dynamic tests. There was no significant difference between stiffness values of two fixation methods under static and rotational loading. Under dynamic loading, the displacement of the superior point of femoral head at the fracture line showed a significant decrease between the new implant system and cannulated screws. Comparing the relative motion at the mid line of the fracture in femoral neck between groups, a significant increase was found in H Beam implant group. Perforated H beam implants have similar static and torsion properties with golden standard. Although there was significant difference under dynamic loading which simulate movement early after surgery, the patient was not allowed to move early after surgery in the clinical practice. Therefore, the differences due to the perforated "H" beam implant would not cause clinical insecurity. Therefore, it is assumed that the perforated "H" beam implant can be used for internal fixation as an alternative to cannulated screws in the treatment of instable femoral neck fracture.
ISSN: 0954-4119
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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