UCL Tears and MRI Correlation

In this video, Dr. Grant H. Garcia highlights the diagnostic workflow for ulnar collateral ligament (UCL) injuries once conservative measures fail, emphasizing the critical value of correlating imaging with a physical exam.

Here is a summary of the core medical insights he shares:

• Advancing Beyond Conservative Care: When active interventions like shutting down an athlete from throwing or physical therapy fail to resolve chronic pain and instability, the clinical focus must shift toward advanced diagnostic imaging to plan the next steps.
• The Initial Imaging Baseline: Before moving to complex scans, the foundational workup includes a physical exam and standard X-rays. Dr. Garcia notes that stress X-rays (taking images while physically applying valgus force to the elbow) can be highly beneficial to visually see if the joint lines physically open up due to instability.
• The Preference for Arthrogram MRIs: For definitive imaging, Dr. Garcia strongly prefers an MRI with contrast injected directly into the joint (an magnetic resonance arthrogram). He warns that standard MRIs can easily miss subtle or partial UCL tears in baseball players. Injecting dye into the joint helps outline the precise boundaries of the tissue, making hidden tears visible.
• Correlating the Whole Picture: Evaluating the quality of a UCL on a scan is notoriously difficult for general radiologists and orthopedic surgeons who do not routinely treat high volumes of these specific elbow injuries. Dr. Garcia stresses that radiologists are at an inherent disadvantage because they cannot physically examine the patient. Ultimately, the definitive diagnosis of a UCL tear requires a specialist to combine the hands-on findings of the physical exam directly with the radiological findings of the scan.