Longitudinal separation of the peroneus brevis tendon in the retromalleolar groove region and extending just distal to the lateral malleolus. The length of the split tear is about 35 mm. No tenosynovitis. Normal proximal muscle belly. Distal tendon insertion is normal.
Peroneus longus tendon and muscle belly are normal. No injury of the peroneal retinaculum. No brevis/ longus tendon subluxation/ dislocation in relation to the retromalleolar groove.
Calcaneofibular ligament is normal.