Rehab for a high ankle sprain vs a lateral ankle sprain will look different in the acute phase, and for good reason👉 A high ankle sprain generally occurs when there is a high impact external force to the foot and ankle that places the foot in a relative amount of external rotation. This causes increased stress to the connective tissue, the interosseus ligament, in between the tibia and the fibula resulting in pain and discomfort with weight bearing, ankle dorsiflexion (pulling the toes up towar