0:00

Now if we go ahead back to my drawing

0:03

and I draw what I consider to be the shape

0:07

of the triangular fibrocartilage complex,

0:10

this is what it looks like.

0:12

So at a conference about five years ago,

0:14

I asked the audience, uh, what kind of shape is that?

0:18

What would you call it?

0:19

I actually got several people called it a square.

0:23

Some people called it a rectangle. Trapezoid. Rhomboid.

0:26

I got a lot of things. I never got the correct answer.

0:29

And then one person sent me an email the next day

0:32

because their 7-year-old child identified this.

0:35

So that shape is a quadrangle or quadrilateral shape.

0:40

So I'm gonna suggest right now that we change the name

0:45

of the triangular fibrocartilage complex

0:48

to Quadrangular Fibrocartilage Complex

0:51

Q-F-C-C-A better abbreviation as well.

0:55

Now, I won't use this term during the rest of the lecture,

0:58

but I'm hoping someday this will be the term complex.

1:02

It is triangular, it is not.

1:05

So if you look at this particular shape,

1:07

you'll see four corners

1:09

and those four corners attached to bone, radius,

1:12

ulnar lunar tri, part

1:15

of the pathology may be a bone of ocean.

1:18

It could occur in any of those corners.

1:21

If we look approximately,

1:22

we see the all no carpal ligaments in the

1:24

meniscus holo located.

1:27

If we go over here,

1:28

we see the articular cartilage of the radius.

1:31

If we go distally,

1:32

we have the all no carpal ligaments in the short

1:35

radial lunate ligaments.

1:37

And if we go medially, we have the meniscus homolog

1:40

and the extensor caral narrows tendon,

1:43

and its she quadrangular.

1:46

However, we can identify a proximal

1:49

triangle within this structure consisting of the TFC,

1:54

the disc, the dors, the distal and proximal lamina,

1:58

and portions of the volar and dorsal radial nerve ligaments.

2:02

And we can even give a distal triangle

2:05

to this structure consisting of the ul, no lunate

2:09

or no triquetral, or no capitate, extrinsic lar ligaments,

2:14

and the meniscus holo.

2:16

So this is the complexity of

2:18

what we are calling the triangular fibrocartilage complex.