Related Experiment Video
Updated: May 28, 2026

Non-Invasive Compression-Induced Anterior Cruciate Ligament (ACL) Injury and In Vivo Imaging of Protease Activity in Mice
Published on: September 29, 2023
MRI of the reconstructed ulnar collateral ligament
Shane A Wear1, D Dean Thornton, Martin L Schwartz
1Radiology Associates of Birmingham, AL 35216, USA. shane.wear@gmail.com
Objective:
We are often asked to evaluate the postoperative elbow using MRI. In this article, we present both the normal appearance of the reconstructed ulnar collateral ligament (UCL) and a spectrum of UCL graft abnormalities at MR arthrography.
Conclusion:
The UCL is the primary medial stabilizer of the elbow during flexion and is susceptible to injury, particularly in overhead throwing athletes. In the setting of UCL injury, ligament reconstruction is the principal surgical procedure available to restore stability and function and to relieve pain with activity. We have found MR arthrography useful in assessing the reconstructed UCL.
Related Concept Videos
Bones of the Upper Limb: Ulna
Bones of the Upper Limb: Radius
The radius has a nail-shaped head, and a short...
Magnetic Resonance Imaging
Imaging Studies for Cardiovascular System IV: CMRI