One part is devoted to what instrumentation does not capture: how the nervous system behaves under load.
We place you in single-leg stance, under progressive load and in the positions your body has learned to avoid since the trauma. We are looking for a muscle that has the strength but does not receive the command to express it, an activation that cuts out when the position resembles the injury, or a co-contraction between agonists and antagonists that blocks the movement instead of producing it.
The response changes depending on where we apply the test, because the origin of the inhibition is often far from the site of pain. Ultrasound and MRI image the state of the tissue, not its ability to be recruited: that requires specific manual tests and an eye trained to recognise what the body is protecting.