Assists in the diagnosis of injury to the Lateral Collateral Ligament (Anterior Talofibular, Calcaneofibular, and Posterior Talofibular Ligaments) which protects against inversion forces at the lateral ankle.
1. The patient lies in a supine position with the foot relaxed.
2. The examiner stabilizes the tibia and fibula from above with one hand.
3. With the other hand, the examiner holds the ankle in 20 degrees of plantar flexion by holding around the midfoot, and draws the talus up towards the examiner's body (the talus forward in the ankle mortise)
4. The laxity is compared to the uninvolved side
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