ArticleBioengineering (Basel, Switzerland)2024
Pelvic Ring Fractures: A Biomechanical Comparison of Sacral and Lumbopelvic Fixation Techniques.
Article in Bioengineering (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 2 citations in OpenAlex.
- Development and evaluation of a multi-axis loading simulator for the spine, pelvis, and lumbosacral region.Scientific reports · 2026Article
- Short- to mid-term outcomes after spinopelvic and sacroiliac screw fixation for unstable sacral fractures: a retrospective cohort study.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026Article
- Selective Anterior Fixation for Rami Fractures in Anteroposterior Compression-Type Pelvic Ring Injuries: Impact of Posterior Stability.Journal of clinical medicine · 2026Article
- Exploratory Biomechanical Comparison of Three Posterior Pelvic Ring Fixation Strategies in a Standardized Tile C1.2 Synthetic Model.Diagnostics (Basel, Switzerland) · 2026Article
- Functional and radiological outcomes following sacroiliac screw fixation of posterior pelvic ring injuries: A retrospective study.Surgery in practice and science · 2025Article
- Lumbopelvic Stabilization with Two Methods of Triangular Osteosynthesis: A Biomechanical Study.Journal of clinical medicine · 2024Article
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background contextPelvic ring fractures are becoming more common in the aging population and can prove to be fatal, having mortality rates between 10% and 16%. Stabilization of these fractures is challenging and often require immediate internal fixation. Therefore, it is necessary to have a biomechanical understanding of the different fixation techniques for pelvic ring fractures.
methodsA previously validated three-dimensional finite element model of the lumbar spine, pelvis, and femur was used for this study. A unilateral pelvic ring fracture was simulated by resecting the left side of the sacrum and pelvis. Five different fixation techniques were used to stabilize the fracture. A compressive follower load and pure moment was applied to compare different biomechanical parameters including range of motion (contralateral sacroiliac joint, L1-S1 segment, L5-S1 segment), and stresses (L5-S1 nucleus stresses, instrument stresses) between different fixation techniques.
resultsTrans-iliac-trans-sacral screw fixation at S1 and S2 showed the highest stabilization for horizontal and vertical displacement at the sacral fracture site and reduction of contralateral sacroiliac joint for bending and flexion range of motion by 165% and 121%, respectively. DTSF (Double transiliac rod and screw fixation) model showed highest stabilization in horizontal displacement at the pubic rami fracture site, while the L5_PF_W_CC (L5-Ilium posterior screw fixation with cross connectors) and L5_PF_WO_CC (L5-Ilium posterior screw fixation without cross connectors) showed higher rod stresses, reduced L1-S1 (approximately 28%), and L5-S1 (approximately 90%) range of motion.
conclusionsLonger sacral screw fixations were superior in stabilizing sacral and contralateral sacroiliac joint range of motion. Lumbopelvic fixations displayed a higher degree of stabilization in the horizontal displacement compared to vertical displacement of pubic rami fracture, while also indicating the highest rod stresses. When determining the surgical approach for pelvic ring fractures, patient-specific factors should be accounted for to weigh the advantages and disadvantages for each technique.
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