The flexor retinaculum can be located between which two bony landmarks?

The flexor retinaculum can be located between which two bony landmarks?

• A. Medial and lateral malleoli
• B. Medial malleolus and navicular
• C. Lateral malleolus and calcaneus
• D. Tibial tuberosity and fibular head

Answer: (A)

The flexor retinaculum is a strong band on the medial side of the ankle that forms the roof of the tarsal tunnel. It runs from the medial malleolus to the calcaneus, holding the tendons of tibialis posterior, flexor digitorum longus, and flexor hallucis longus, along with the tibial nerve and vessels, in place as they pass into the foot. This is why it’s described as being located between the medial malleolus and the calcaneus. The other pairings point to different structures (such as the calcaneofibular ligament from the lateral malleolus to the calcaneus, or locations in the leg), which aren’t the attachments of the flexor retinaculum.

The flexor retinaculum is a strong band on the medial side of the ankle that forms the roof of the tarsal tunnel. It runs from the medial malleolus to the calcaneus, holding the tendons of tibialis posterior, flexor digitorum longus, and flexor hallucis longus, along with the tibial nerve and vessels, in place as they pass into the foot. This is why it’s described as being located between the medial malleolus and the calcaneus. The other pairings point to different structures (such as the calcaneofibular ligament from the lateral malleolus to the calcaneus, or locations in the leg), which aren’t the attachments of the flexor retinaculum.