elbow mri brachialis tendon tears tendinosis radiology education asia

MRI ELBOW: MRI BRACHIALIS TENDON TEARS, TENDONOSIS AND NORMAL

BRACHIALIS TENDON MRI: Elbow MRI Brachialis tendon Tendinosis, Tears and Normal

 

The Brachialis tendon is less commonly injured than the biceps.  It inserts onto the anterior ulnar on the ulnar tuberosity and to a lesser extent on the coronoid process but the tendon is very short compared to the biceps tendon. Most commonly we see tendinosis or a strain/partial tear at the musical tendinous junction. Complete ruptures are uncommon.

mri elbow brachialis anatomy radiology education asia

 

    • Where does the brachialis tendon insert?
    • The Brachialis tendon inserts predominantly on the ulna tuberosity (Yellow circle and arrow) with some fibres extending to the coronoid process.

 

mri elbow brachialis normal mri anatomy radiology education asia

  • The Normal Brachialis tendon (blue arrow) should be black on all sequences like all tendons. Its separate to the Biceps tendon (yellow arrow).
  • The second image is a sagittal scan, and demonstrates a broad tendon attachment (blue arrow) with a very short tendon length.
  • Brachialis muscle (red arrow).

mri elbow brachialis normal mri tendinosis radiology education asia

  • Brachialis tendinosis on MRI has the standard appearance of tendinosis in any tendon
  • Look for intermediate increased PDFS signal within tendon and there may also be peritendinous oedema (blue arrow).
  • In the image above there is also mild tendinosis biceps tendon (yellow arrow). 

mri elbow brachialis normal mri tendinosis severe radiology education asia

  • Brachialis tendon (yellow arrow) is dark signal proximally (first image) but is barely seen more distally due to tendinosis and delamination.
  • Compare the signal with normal low signal of the biceps tendon (blue arrow). 

mri elbow brachialis normal mri tendinosis musculotendinous strain partial tear radiology education asia

  • There is a Brachialis musculotendinous junction (MTJ) strain and partial tearing at the junction.
  • There is Oedema in muscle and its interface with the tendon at the The MTJ (blue arrow).
  • Brachialis tendon itself (yellow arrow) appears normal. 

Learn more about this condition and how to best report it in more detail in our Guided Elbow MRI Mini Fellowship coming in 2022.

 

Please join our email list HERE to know when the course will commence.

For all our other current MSK MRI Guided Mini Fellowships.

Click on the image below for more information.

#radiology #radedasia #mri #elbowmri #msk #mrielbow #mskmri #brachialistendon #tendonosis #radiologyeducation #radiologycases #radiologist #rads #radiologystudent #radiologycme #radiologycpd #medicalimaging #imaging #radcme #rheumatology #arthritis #rheumatologist #sportsmed #orthopaedic #physio #physiotherapist

#radedasia #mri #mskmri #radiology

This site is intended for Medical Professionals 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.
error: Right Click not available.