What lesion occurs on the anterior dorsal lateral aspect of the talus due to rubbing from a ligament?

• A. Osteochondral lesion
• B. Basset lesion
• C. Cartilage defect
• D. Ligament tear

Answer: (B)

The lesion that occurs on the anterior dorsal lateral aspect of the talus due to rubbing from a ligament is known as a Basset lesion. This type of lesion is specifically associated with chronic mechanical irritation, particularly from ligaments that may rub against the bony surface of the talus as a result of repetitive motion or instability in the joint.

A Basset lesion represents an area of damage that can occur from long-term stress on the articular surface, often noted in activities that place excessive load on the ankle joint. The anterior dorsal lateral aspect of the talus is a site where this kind of wear can frequently manifest as the overlying ligaments, such as the anterior talofibular ligament, contribute to the mechanical forces during movement.

This distinct form of lesion is important to recognize in the context of ankle injuries and disorders, particularly in athletes or individuals engaging in high-impact activities where joint stability is crucial. Proper diagnosis and understanding of a Basset lesion can lead to effective treatment options aimed at alleviating symptoms and preventing further joint damage.

In contrast, the other options represent different types of pathology. An osteochondral lesion refers to a more generalized injury involving both bone and cartilage, while a cartilage defect signifies damage to the cartilage alone, and