0:00

Now let's go back to some labral abnormalities

0:03

and talk about some of the clinical manifestations,

0:07

talking about causes of abnormalities of the labrum.

0:11

Labral degeneration is common with advancing age

0:15

and can lead to degenerative tears.

0:17

This is not a unique phenomenon.

0:19

We see the same thing with the glenoid labrum.

0:23

Chronic mechanical alterations can cause problems

0:27

with the labrum, okay?

0:29

They relate in some cases to acetabular dysplasia

0:33

and other forms of alterations In femoral morphology,

0:37

trauma can cause lab abnormalities, either major trauma,

0:41

for example, a hip dislocation

0:44

or minor injuries, twisting injuries, and certain sports.

0:48

And these are the ones that have been particularly

0:51

emphasized in the literature.

0:53

Soccer, hockey, ballet

0:54

and golf can cause labral abnormalities.

1:00

What was known early on, even

1:02

before Mr Imaging came along was the relationship

1:06

of developmental dysplasia of the hip

1:09

with labral abnormalities, including labral tears

1:12

and paralabral ganglia cyst.

1:15

I can remember as a resident in radiology,

1:18

diagnosing in fact developmental dysplasia with labral tears

1:23

and power label gangly insists

1:25

because gas in the hip joint would pass

1:28

through the labral tear,

1:30

and we would see a mass

1:31

with gas within it adjacent to the hip.

1:34

And we said, yes, we're dealing with labral tear

1:37

and a power label ganglia in cyst.

1:40

Here with Mr. Imaging more direct visualization

1:43

of the pathology that you can see with dysplasia of the hip,

1:48

the femoral head sublux laterally, less resting on the, uh,

1:53

labrum abnormal, uh, morphology of the acetabulum.

1:56

It's not surprising that one could see labral tariff.

2:01

With regard to clinical findings, 90 to 95, uh, percent

2:06

of persons over the age of 70 years have pathologic evidence

2:11

of labral abnormalities,

2:12

and many of them have imaging evidence of such abnormalities

2:17

as well with regard to pain about the hip,

2:21

hip, and groin pain.

2:22

20 per to 50% of persons with such pain have label pairs,

2:28

and then clicking, which is a common phenomenon

2:31

with certain hip pathologies, a hundred percent sensitivity

2:35

and specificity for lab abnormalities have been reported.

2:40

In some cases. I think that figure is high.

2:43

You can have clicking related to other causes,

2:46

not just labral pairs.