 Let's look at the high and low ankle with the toe point at a 1.5 T in The coronal projection we start out more in the back There's the posterior tib fib ligament Some of the syndesmosis above it, which is variably perforated for vessels and nerves Now let's work our way forward to the anterior tib fib ligament That is more ill-defined Because the foot is in plantar flexion so it shows up as some wispy Gray structures between the tibia and the fibula Let's do something a little bit more easy. Let's go back to the back of the ankle and show you the two major bundles of The posterior telo fibular ligament inserting on the fibula with a fairly broad footprint That structure almost never tears. It's very powerful and really only ruptures in ankle Dislocations we're not going to show you the cura ligaments, which are not well seen with the foot and plantar flexion But we are going to show you this ligament The calcaneal fibular ligament, which is optimally seen with the foot and plantar flexion So let's move forward a little bit Let's move to the front not all the way to the front. Look where we are on the fibula This ligament that we're going to show you goes from proximal supralateral to posterior Infromedial so in other words, it's going to go from the fibula and Go backwards. Let's go backwards. Sorry Backwards there it is now. It's triangular. Let's keep going backwards now It almost looks like a tendon. It's lining up with the perineas brevis, but it is not the perineas brevis It is the spreading out of the insertion of the calcaneal fibular ligament. There it is. There it is There it is There it is there it is inserting on the back of the calcaneas That is the lateral collateral ligament anatomy and the coronal projection with the toe pointed