0:01

Oh, what fun to look at a

0:02

diagram summarizing the deltoid.

0:06

Let's begin with the tibial spring ligament.

0:08

And we have its origin, but why no insertion site?

0:12

Because it inserts on a ligament.

0:16

And here are the origins and

0:18

attachments of that ligament, called the

0:19

superior calcaneonavicular ligament.

0:21

There's the ligament.

0:23

And here is the attachment.

0:25

It's a bony to ligamentous attachment.

0:29

And the most important one

0:30

of the superficial group.

0:32

In front of it, I'm not going

0:34

to change color right now.

0:35

We would have the tibionavicular ligament.

0:39

It's a pretty wispy one and hard to see.

0:42

The next one behind it and quite

0:45

oblique and having its own sight

0:48

would be the tibiocalcaneal ligament.

0:51

And then finally, in the back, we

0:53

would have the posterior tibiotalar

0:56

ligament, which is pretty short.

0:58

So, there's four of them.

1:00

Now, let's continue on and see

1:03

them each in their own right.

1:06

So the tibionavicular ligament.

1:08

It's going to go from a slightly more

1:09

anterior portion of the malleolar

1:13

anterior funiculus to the navicular.

1:18

Let's keep going, shall we?

1:20

The deep anterior tibiotalar ligament.

1:23

That one is underneath.

1:25

So this is not part of the superficial.

1:29

The deep cannot tear without the superficial.

1:33

But the superficial can tear without the deep.

1:36

So until this moment, I was only

1:38

showing you superficial ligaments.

1:39

Now I'm showing you a deep ligament,

1:42

and there's only two of them.

1:44

Let's keep going, shall we?

1:45

The tibiocalcaneal ligament.

1:48

This is part of the superficial system.

1:51

The next one back, origin and insertion.

1:55

The spring ligament.

1:57

We've already outlined that one.

1:59

That's the one that goes horizontal.

2:03

It's not really part of the collateral

2:05

per se, but it is a connector.

2:09

Between the medial malleolus and this ligament.

2:14

So it has a ligamentous attachment,

2:16

as previously discussed.

2:18

So that's the only reason why we've

2:20

included it in this compilation.

2:24

Then finally, we have the superficial

2:26

posterior tibial talor ligament, which is

2:30

also part of the superficial system, and then

2:33

we finish it off with the deep posterior.

2:37

So in other words, we really only have two deep.

2:40

We've got this one right here.

2:42

I'll draw over it.

2:44

I'll pick the same color, deep.

2:48

We've got another one that's deep anterior, deep.

2:53

Then everything else is superficial, and

2:56

we've outlined them from front to back,

2:59

tibionavicular, tibiospring, tibiocalcaneal,

3:03

and superficial posterior tibiotalar

3:06

ligaments with their origins and insertions.

3:09

You gotta love that.