ArticleBone & joint research2025
Feasibility and reliability of shear wave elastography-guided collateral ligament balancing during total knee arthroplasty : an ex vivo study on porcine knees.
Article in Bone & joint research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Aims: To assess the feasibility and reliability of shear wave elastography (SWE) as an intraoperative tool for real-time monitoring and adjustment of collateral ligament tension during total knee arthroplasty (TKA). Methods: A total of 33 porcine knee specimens were divided into stretching (n = 13) and minimally invasive needle puncture (MNP) groups (n = 20). The stretching experiment evaluated correlations between distraction forces (20 to 60 N) and shear wave speed (SWS) in medial (MCL) and lateral collateral ligaments (LCL). The MNP experiment assessed SWS and medial gap changes during 45 punctures at 90° flexion or full extension under 45 N force. Pearson correlation, generalized linear mixed models (GLMMs), and two-way analysis of variance analyzed relationships and effects. Intra- and interobserver reliability were calculated using intraclass correlation coefficients (ICCs). Results: In the stretching experiment, SWS increased linearly with distraction force ( Conclusion: SWE is a reliable, noninvasive tool for monitoring ligament tension changes during TKA, offering greater sensitivity than gap measurements. It shows great potential for optimizing knee ligament tension, improving soft-tissue balancing, and enhancing TKA outcomes.
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