I | Splayed-out tendon | The peroneus brevis tendon is flattened between the peroneus longus tendon and lateral malleolus. | Conservative treatment |
II | Partial-thickness split | The tendon is flattened and also shows central thinning and some degeneration of tendon structure. | Conservative treatment |
III | Full-thickness split | The tendon had a central “fenestration” and appeared to be separated into 2 fragments on a variable of section. | Surgical evaluation and repair |
IV | Split extending >2 cm | The tendon had a central “fenestration” and appeared to be separated into 2 fragments on a variable of section. | Surgical evaluation and repair |