Have you had an ankle sprain that seemed to get better for a while, but you just can’t get back to running or jumping without pain? This is likely because you’ve sprained the fibrocartilage joint at the bottom of your leg, where the fibula joins on to the tibia (syndesmosis).
This joint is critical for the stability of the ankle, as a high grade sprain allows the tibia and fibula to spread, and the talus (ankle bone) slides up a little between them. Conservative treatment doesn’t really work, so they often need to have a screw inserted surgically to stablise the joint, which can then be removed after 12 weeks to 6 months, depending on function and pain.
If this sounds like your injury, see your physiotherapist for diagnosis and advice about treatment, or recommendation of a good foot and ankle surgeon.