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Title: Biomechanical comparison of supraacetabular external fixation and anterior pelvic bridge plating
Authors: Çavuşoğlu, Ali Turgay
Erbay, Fatma Kübra
Özsoy, Mehmet Hakan
Demir, Teyfik
Keywords: Pelvis
supraacetabular external fixation
anterior pelvic bridge plating
Issue Date: Oct-2017
Publisher: Sage Publications Ltd
Source: Çavuşoğlu, A. T., Erbay, F. K., Özsoy, M. H., & Demir, T. (2017). Biomechanical comparison of supraacetabular external fixation and anterior pelvic bridge plating. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 231(10), 931-937.
Abstract: Unstable pelvic ring injuries are complex and risky injuries due to high morbidity and mortality. Although anterior pelvic external fixator is a suitable method for rapid stabilization of an injured pelvic ring, due to some disadvantages such as high complication rate, nerve damage, and difficulties of patient's mobility and comfort, there has recently been increased searching for alternative methods for stabilization of the pelvic ring. Pubic symphysis zone freely moves in pelvic models. This study aims to evaluate the biomechanical stability of anterior pelvic bridge plating and compare it with supraacetabular external fixators in an untreated unstable pelvic fracture model. Samples were loaded statically with 2-mm/min loading rate in single leg standing position. Maximum load was 2.3 kN. When loading the samples, photographs were taken continuously. Stiffness values were calculated from the load displacement curves. Some reference parameters were described and were measured from unloaded and 2.3-kN-loaded photographs of the test. The mean stiffness values were 491.14 +/- 52.22, 478.55 +/- 41.44, and 470.25 +/- 44.51 N/mm for anterior pelvic bridge plating group, supraacetabular external fixator group, and Control group, respectively. According to the measured parameters from photographs, the mean displacement at the pubic symphysis was 4.7 +/- 0.32, 15.8 +/- 2.01, and 18.2 +/- 0.47mm for anterior pelvic bridge plating, supraacetabular external fixator, and Control group, respectively. The highest displacement in the pubic symphysis was found in Control group, and minimum displacement was observed in anterior pelvic bridge plating group. When the perpendicular distance between the right and left lower end of ischium was examined, it was observed that displacement was minimum in anterior pelvic bridge plating group compared to other two groups, regarding to the high stability of pubic symphysis. In conclusion, this study revealed superiority of anterior subcutaneous plate fixation with biomechanical results.
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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