MRI signs of complete TFCC styloid attachment tear with secondary instability

Complete ulnar styloid attachment tear of the TFCC leaves the bony footprint empty due to tendon retraction. Look for subchondral cyst formation and lunotriquetral ligament injury as secondary signs of instability.

• Teaching video demonstrating a complete TFCC styloid tear; previously partial tear retracted, resulting in an empty ulnar footprint.
• Secondary findings of subchondral cyst and lunotriquetral ligament injury indicate associated instability.
• Single-case demonstration without external validation.

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