Which test uses inversion and eversion of the calcaneus with the tibia stabilized?

Which test uses inversion and eversion of the calcaneus with the tibia stabilized?

• A. Ankle anterior drawer test.
• B. Talar tilt test.
• C. Apley compression test.
• D. Thessaly test.

Answer: (B)

This question is about ligament stability around the ankle and how to stress the joint to detect injury. When the tibia is held steady, moving the calcaneus to invert and then evert isolates the talocrural joint and tests how well the ankle ligaments hold the talus in place. Inversion of the calcaneus with the tibia stabilized stresses the lateral ligaments, especially the calcaneofibular ligament, so a patient with excessive motion or pain in this direction suggests lateral ligament injury. Eversion stresses the medial ligaments, notably the deltoid complex, so pain or abnormal movement here points to medial instability. This approach directly distinguishes which ligaments may be damaged, which is why this test is used for assessing ankle sprains. Other tests mentioned assess different structures: the ankle anterior drawer test targets the anterior talofibular ligament by pulling the talus forward with the knee and ankle in a specific position; the Apley compression test and Thessaly test evaluate knee structures (like menisci) rather than the ankle.

This question is about ligament stability around the ankle and how to stress the joint to detect injury. When the tibia is held steady, moving the calcaneus to invert and then evert isolates the talocrural joint and tests how well the ankle ligaments hold the talus in place.

Inversion of the calcaneus with the tibia stabilized stresses the lateral ligaments, especially the calcaneofibular ligament, so a patient with excessive motion or pain in this direction suggests lateral ligament injury. Eversion stresses the medial ligaments, notably the deltoid complex, so pain or abnormal movement here points to medial instability. This approach directly distinguishes which ligaments may be damaged, which is why this test is used for assessing ankle sprains.

Other tests mentioned assess different structures: the ankle anterior drawer test targets the anterior talofibular ligament by pulling the talus forward with the knee and ankle in a specific position; the Apley compression test and Thessaly test evaluate knee structures (like menisci) rather than the ankle.