Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comparative Study
. 2018 Jun 19;13(1):152.
doi: 10.1186/s13018-018-0858-2.

Biomechanical study of three kinds of internal fixation for the treatment of sacroiliac joint disruption using biomechanical test and finite element analysis

Tao Wu  1 , Xuejiao Ren  2 , Yunwei Cui  3 , Xiaodong Cheng  3 , Shuo Peng  1 , Zhiyong Hou  3 , Yongtai Han  4
Affiliations
Comparative Study

Biomechanical study of three kinds of internal fixation for the treatment of sacroiliac joint disruption using biomechanical test and finite element analysis

Tao Wu et al. J Orthop Surg Res. .

Abstract

Background: To compare the stability of sacroiliac joint disruption fixed with three kinds of internal fixation using both biomechanical test and finite element analysis.

Methods: Five embalmed specimens of an adult were used. The symphysis pubis rupture and left sacroiliac joint disruption were created. The symphysis pubis was stabilized with a five-hole plate. The sacroiliac joint disruption was fixed with three kinds of internal fixation in a randomized design. Displacements of the whole specimen and shifts in the gap were recorded. Three-dimensional finite element models of the pelvis, the pelvis with symphysis pubis rupture and left sacroiliac joint disruption, and three kinds of internal fixation techniques were created and analyzed.

Results: Under the vertical load, the displacements and shifts in the gap of the pelvis fixed with minimally invasive adjustable plate (MIAP) combined with one iliosacral (IS) screw were the smallest, and the average displacements of the pelvis fixed with an anterior plate were the largest one. The differences among them were significant. In finite element analysis and MIAP combined with one IS screw fixation showed relatively best fixation stability and lowest risks of implant failure than two IS screws fixation and anterior plate fixation.

Conclusion: The stability of sacroiliac joint disruption fixed with MIAP combined with one IS screw is better than that fixed with two IS screws and anterior plate under vertical load.

Keywords: Biomechanics; Finite element analyses; Internal fixation; Sacroiliac joint disruption.

PubMed Disclaimer

Conflict of interest statement

Ethics approval and consent to participate

The ethics committee of the Third Hospital of Hebei Medical University approved this study. Informed consent was obtained from the individual participant included in this study.

Competing interests

The authors declare that they have no competing interests.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Figures

Fig. 1
Fig. 1
The structure of MIAP
Fig. 2
Fig. 2
Image of the specimen after creating left sacroiliac disruption with an incision on the symphysis pubis
Fig. 3
Fig. 3
Sacroiliac disruption fixed with MIAP combined with one IS screw. a Posterior view of the specimen. b Anteroposterior radiograph of the pelvis. Sacroiliac disruption fixed with two IS screws. c Posterior view of the specimen. d Anteroposterior radiograph of the pelvis. Sacroiliac disruption fixed with an anterior plate. e, a Posterior view of the specimen. f, b Anteroposterior radiograph of the pelvis
Fig. 4
Fig. 4
Load-displacement scattergraph of the specimens
Fig. 5
Fig. 5
Distribution of von Mises stress in the intact pelvic model
Fig. 6
Fig. 6
a The stress distribution of the pelvis fixed with MIAP combined with one IS screw. b The stress distribution of the MIAP combined with one IS screw. c The stress distribution of the pelvis fixed with two IS screws. d The stress distribution of two IS screws. e The stress distribution of the pelvis fixed with anterior plate. f The stress distribution of the anterior plate
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

References

    1. Gnat R, Spoor K, Pool-Goudzwaard A. The influence of simulated transverses abdominis muscle force on sacroiliac joint flexibility during asymmetric moment application to the pelvis. Clin Biomech (Bristol, Avon) 2015;30(8):827–831. doi: 10.1016/j.clinbiomech.2015.06.006. - DOI - PubMed
    1. Giraldez-Sanchez MA, Lazaro-Gonzalvez A, Martinez-Reina J, Serrano-Toledano D, Navarro-Robles A, Cano-Luis P, Fraqkakis EM, Giannoudis PV. Percutaneous iliosacral fixation in external rotational pelvic fracture. A biomechanical analysis. Injury. 2015;46(6):327–332. doi: 10.1016/j.injury.2014.10.058. - DOI - PubMed
    1. Bousbaa H, Ouahidi M, Louaste J, Bennani M, Cherrad T, Jezzari H, Kasmaoui EH, Rachid K, Amhajji L. Percutaneous iliosacral screw fixation in unstable pelvic fractures. Pan Afr Med J. 2017;27(8):244. - PMC - PubMed
    1. Zhang R, Yin Y, Li S, Hou Z, Jin L, Zhang Y. Percutaneous sacroiliac screw versus anterior plating for sacroiliac joint disruption: a retrospective cohort study. Int J Surg. 2018;50(2):11–16. doi: 10.1016/j.ijsu.2017.12.017. - DOI - PubMed
    1. Wu T, Chen W, Zhang Q, Cui YW, Cheng XD, Yang YJ, Zhang YZ. Fixation of unstable pelvic fractures with minimally invasive adjustable plate. Int J Clin Exp Med. 2017;10(1):1399–1404.

Publication types

LinkOut - more resources