Monthly Archives: May, 2021

What is a Boutonniere Deformity?

A boutonniere deformity occurs as a result of the disruption, or tear, of the extensor tendon found at the top of the finger, known as the ‘center slip.’ This disruption keeps the middle joint of the finger (known as the PIP joint) from straightening, and causes the end joint of the finger, known as the…

Read More