ArticleArchives of orthopaedic and trauma surgery2025
Biomechanical comparison of fixation techniques for associated both-column acetabular fractures requiring single (anterior or posterior) versus combined anterior-posterior approaches.
Article in Archives of orthopaedic and trauma surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Feasibility study of antegrade insertion of lateral compression type-II screws guided solely by the combined obturator-oblique outlet view.International orthopaedics · 2026Article
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7 authors.
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Abstract
introductionComparative data on fixation techniques for associated both-column (ABC) acetabular fractures are scarce. Compared with both column plating (AP + PP) via a combined anterior-posterior approach, single column plate plus other column lag screw fixation obviates the need for a second surgical approach. In this study, we (1) developed a clinically relevant ABC fracture model and (2) biomechanically compared the fixation strength of single column plate plus other column lag screw fixation and both column plating. MATERIALS AND
methodsAn ABC fracture model was created using fourth-generation composite hemipelves. Three different ABC fracture fixation techniques were biomechanically compared: (1) anterior column plate plus posterior column screw fixation (AP + PCS), posterior column plate plus anterior column screw fixation (PP + ACS), and anterior column plate plus posterior column plate fixation (AP + PP). Both single-leg stance (SLS) and sit-to-stand (STS) loading protocols were applied (loads from 50 to 750 N, ramp: 100 N/s). Fracture gap motion (FGM) and relative interfragmentary rotation (RIFR) between the four main fracture fragments were analysed at 750 N using an optical 3D measurement system.
resultsSingle column plate plus other column lag screw fixation techniques (AP + PCS and PP + ACS) provided comparable fixation strength to AP + PP, as evidenced by similar or even lower FGM and RIFR values. Moreover, no significant differences in FGM and RIFR were found between AP + PCS and PP + ACS. Compared to SLS loading, STS loading resulted in higher mean FGM and RIFR between the posterior iliac wing and the posterior column fragment across all fixation techniques.
conclusionsIn our ABC fracture model, both column plate fixation (AP + PP) via a combined approach did not demonstrate superior biomechanical stability compared with single column plate plus other column lag screw fixation. The latter, however, requires only one approach, thereby reducing surgical time and approach-related morbidity, and appears preferable if reduction of both columns is achievable through a single approach.
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