Testing for:
Posterior Talofibular ligament injury and/or ligamentous instability
Procedure:
- Patient is supine with foot relaxed
- Therapist stabilizes tibia and fibula with one hand
- With the patient’s foot plantar flexed to 20 degrees, the Therapist holds the patient’s calcaneus with other hand then distracts the calcaneus from the tibia and fibula (by slowly pulling the calcanues inferiorly)
- Therapist places an posteriorly directed pressure on the calcaneus and talus, applying overpressure at the end of the passive range
Positive Sign:
Ligamentous laxity or rupture with Presence of sulcus and pain, and/ or
Excessive posterior translation of the talus