56F with pain over the thumb MCP UCL and A1 pulley MRI

As someone still early in training, I found this case particularly fascinating, especially the longitudinal tear pattern of the volar plate without avulsion.

Would it be reasonable to consider that this might represent a chronic repetitive stress-related injury, even in the absence of pulley involvement?

I’m also curious how often such tears might be overlooked if not specifically suspected on imaging.

On Mon, 9 Jun 2025 at 19:59, hilary wrote:


There is marrow edema at the bilateral base of the proximal phalanx without fracture or collateral ligament tear

There is synovitis in the volar MCP capsule with volar pericapsular edema…the volar plate is not visible medial to midline, but doesn’t appear avulsed

The axial images show what appears to be a longitudinal tear through the substance of the medial paracentral volar plate, with fluid signal traversing the defect.

Would this be primarily repaired, or would it be treated conservatively?
I’m guessing it would be left to scar remodel, but I have never seen this pattern of tear.

Hilary

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