Ultrasound-derived tibia-fascia angle for noninvasive assessment of intracompartmental pressure in tibial plateau fractures

Heng Zhang, Luqi Li, Huiyang Jia, Haofei Wang, Qi Dong, Jialiang Guo, Heping Deng and Zhiyong Hou

PLOS ONE, 2026, vol. 21, issue 3, 1-10

Abstract: Background: Current noninvasive diagnostics for acute compartment syndrome (ACS) lack clinical practicality and reliability. This study aimed to evaluate ultrasound-derived tibia-fascia angle (TFA) as a novel morphometric surrogate for intracompartmental pressure (ICP) assessment. Methods: In this observational study, 105 patients with closed tibial plateau fractures were enrolled at a tertiary trauma center. TFA was bilaterally measured using B-mode ultrasound by blinded operators. Invasive ICP served as the reference standard. Correlations were analyzed via Spearman correlation analysis and multivariable linear regression, and diagnostic performance for high compartment pressure (HCP, ICP > 30 mmHg) was assessed using ROC analysis. Results: ΔTFA showed a significant linear correlation with ICP after adjustment for confounders (β = 1.74 mmHg/°, 95% CI: 1.07–2.41, Padj

Date: 2026
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0344990

DOI: 10.1371/journal.pone.0344990

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