What indicates excessive joint laxity in the Talar Tilt Test?

The Talar Tilt Test is designed to assess the integrity of the lateral ankle ligaments, particularly the anterior talofibular ligament and the calcaneofibular ligament. Excessive joint laxity during this test is indicated by abnormal movement of the talus, specifically in the directions of adduction (ADD) and abduction (ABD).

When the foot is in a neutral position and the talus is tilted, a positive sign of excessive laxity is identified when there is increased movement of the talus in these directions compared to the normal side or in relation to expected values. This abnormal range of motion suggests that the ligaments are either stretched or damaged, thus confirming excessive laxity.

The other options do not appropriately signify excessive laxity in this test. Pain during dorsiflexion might indicate other issues but does not directly relate to joint laxity. Movement in a previously flexed position could reflect other joint mechanics rather than an assessment of ligamentous stability. Difficulty in bilateral comparison may highlight a lack of consistency in test execution or assessment rather than revealing joint laxity in a meaningful way. Hence, the identification of excessive joint laxity is best captured by movement in ADD and ABD during the Talar Tilt Test.