The muscle runs down the lateral side of your ... where the peroneus longus tendon moves out of place behind the lateral malleolus of your ankle, then snaps back into place. This condition may ...

The nerve travels down the leg between the two heads of the gastrocnemius muscle ... along the lateral aspect (outer aspect) of the Achilles tendon, goes behind the lateral malleolus of the ...

New research from ECR 2025 shows promise in using dynamic ultrasound to diagnose peroneal tendon instability. Read more!