Streaming Potential-Based Arthroscopic Device is Sensitive to Cartilage Changes Immediately Post-Impact in an Equine Cartilage Injury Model

Abstract — Editorial summary

An equine explant model was used to compare electromechanical and mechanical detection of cartilage injury immediately after impact. Adult trochlear cartilage received low, medium or high impacts and was assessed with an arthroscopic streaming-potential device, compression testing and microscopy. Streaming-potential measurements decreased after medium and high impacts, whereas significant deterioration in fibril stiffness and permeability was mainly detected after high impacts. Electromechanical measurements also correlated with intrinsic mechanical properties and cartilage thickness. In this experimental setting, the probe detected impact-related changes more sensitively than compression tests on isolated cartilage disks.

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