Indentation stiffness does not discriminate between normal and degraded articular cartilage.
BACKGROUND: Relative indentation characteristics are commonly used for distinguishing between normal healthy and degraded cartilage. The application of this parameter in surgical decision making and an appreciation of articular cartilage biomechanics has prompted us to hypothesise that it is difficult to define a reference stiffness to characterise normal articular cartilage. METHODS: This hypothesis is tested for validity by carrying out biomechanical indentation of articular cartilage samp...Expand abstract
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