Claw hand deformity is when the fingers bend in to look like a claw. It has several potential causes with ulnar nerve injury being the most common cause. Claw hand deformity can affect all or some ...

They diagnosed ulnar palsy, or "claw hand", by analysing the depiction of his right hand in two artworks. It had been suggested that Leonardo's hand impairment was caused by a stroke. But in the ...