OnExam

Assesses stability of the lateral ligament complex (anterior talofibular ligament, posterior talofibular ligament and calcaneofibular ligaments)

Performing the Test

  1. Patient: supine, ankle started in slight plantar flexion
  2. Examiner: stabilizes tibia with one hand, anteriorly glides calcaneus and talus on stabilized tibia
    • Often best done with foot hanging over edge of bed
  3. Positive test: excessive anterior movement of talus indicating ankle instability
  4. Sensitivity: 78%; Specificity: 75%
  5. LR+ 3.1, LR- 0.29

References

  1. Magee D. Orthopedic Physical Assessment. 1st ed. Philadelphia:Saunders; 1986.
  2. Baxter S, ed., McScheffrey G, ed. Toronto Notes: Comprehensive Medical Reference & Review for MCCQE 1 & USMLE 2. 26th ed. Toronto: Toronto Notes for Medical Students Inc; 2010.
  3. Essential Evidence Plus. http://www.essentialevidenceplus.com. 2011. Accessed February 2011.