0:00

So when this person who had focal pain and swelling

0:03

after banging their elbow on the table,

0:06

we can see a soft tissue prominence over theon on

0:09

this lateral projection.

0:11

And this is a case of renon bursitis.

0:13

So differential diagnosis

0:15

for bursitis includes mechanical causes such

0:17

as a traumatic etiology as in this case.

0:21

However, somebody presenting with spontaneous bursitis

0:24

or inflammation over that area, you have

0:27

to consider infection

0:28

or an inflammatory arthritis,

0:31

potentially rheumatoid arthritis,

0:33

but also can be a manifestation of gout.

0:35

Here we have Aon abnormality.

0:39

So this is a person who has a a bone spur

0:42

or an zaphy over their reon at the triceps attachment site,

0:46

and we can identify a discontinuity between the zaphy

0:50

and the underlying bone.

0:52

And that represents an reon spur fracture

0:55

causing reon bursitis.

0:57

Person had went on to MRI

0:59

because of concern for the integrity of the triceps tendon,

1:03

and the MRI is just showing a nice demonstration of where

1:06

that eron bursa forms right over the extensor prominence.

1:11

So when looking at the adult elbow, the things

1:14

that we include in the checklist

1:16

is using the lateral projection

1:18

to identify if there's an effusion.

1:20

Remember, a posterior fat pad is always abnormal.

1:23

An anterior fat pad may be visualized, but if it's displaced

1:27

or sailed out greater than 30 degrees,

1:29

then it's considered a marker for a effusion.

1:32

Consider a number of different osteochondral fractures

1:35

that sometimes can be subtle about the elbow.

1:38

And if a person has a radial head fracture that's commuted

1:42

strongly, consider performing wrist imaging

1:44

because the number of associated lesions that occur.

1:47

And as our final reminder, here's an example of how we look

1:50

for an elbow joint effusion.

1:52

Here is our anterior fat pad

1:54

that's now sailed out into a triangular configuration

1:57

and we can see visualization of the posterior fat pad.

2:00

And this is all predicated on having

2:02

a good lateral projection.

Olecranon Bursitis Summary

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