This site is intended for Medical Professions only. Use of this site is governed by our Terms of Service and Privacy Statement which can be found by clicking on the links. Please accept before proceeding to the website.
OS ACROMIALE SHOULDER MRI RADIOLOGY (VIDEO)
OS ACROMIALE SHOULDER MRI RADIOLOGY
HOW TO FIND AN OS ACROMIALE ON MRI SHOULDER
- Os Acromiale can be a source of shoulder pain and is easy to miss if you don’t look specifically.
- In this post we look at a structured way to find them.
- See the video below which demonstrates how to find an os acromiale on MRI Shoulder.
Â
WHAT IS AN OS ACROMIALE?
An os acromiale is a persistent accessory ossification centre of the lateral acromion.
- It’s normal to see the accessory ossification centre until around 15 years of age.
- But there should be complete fuse by 25.
- If there is non-fusion and a persistent os after 25, it’s termed an os acromiale.
SIGNIFICANCE OF AN OS ACROMIALE
It may be completely asymptomatic but there are two potential complications.
Â
- Impingement on the Rotator Cuff tendons.
 - Acromial apophysiolysis.
ROTATOR CUFF IMPINGEMENT
- There can be abnormal movement between the acromion and the OS Acromiale.
- This results in the OS moving inferiorly & impinging on the RCT.
- Additionally, if there is malalignment between the OS and the Clavicle, this can lead to narrowing of the subacromial space.
- For acromial apophysiolysis, we will look at this specifically in our other post HERE.
HOW TO FIND AN OS ACROMIALE ON MRI SHOULDER
- So how do you best recognise an Os Acromiale on Shoulder MRI.
- Its easy to miss if you don’t look for it specifically and the key is to look at the axial scans where it is most obvious.
- You can see it on coronal images but it‘s much harder and sagittals are not much help.
- See the video below which demonstrates how to find an os acromiale on MRI Shoulder.
HOW DO YOU FIND AN OS ACROMIALE: VIEW VIDEO
If you wish to watch the video in language other than English, please view it on our YouTube Channel HERE
Our CPD & Learning Partners
- Join our WhatsApp RadEdAsia community for regular educational posts at this link:
https://bit.ly/radedasiacommunity - Get our weekly email with all our educational posts: https://bit.ly/whathappendthisweek
OUR OTHER POPULAR POSTS ON GLENOHUMERAL LIGAMENTS: CLICK ON THE IMAGE BELOW
