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Support for this post is provided by BODYiQ. Enter code HD20 to get 20% off all products: https://bodyiq.dub.link/HD20 Take the next step beyond education. BODYiQ connects you with licensed providers offering GLP-1 programs, hormone therapy, longevity treatments, and highest grade supplements to help you feel your best. — The term “Boutonniere deformity” comes from the French word “boutonnière,” meaning “buttonhole.” It was named this way because the deformity makes the finger look as if the head of the proximal phalanx (the middle joint bone) is poking through the slit of a buttonhole formed by the torn central tendon. In other words, the tendon injury creates a “hole” through which the bone projects — resembling a button pushed through a buttonhole, hence Boutonniere deformity. This 4K 3D medical animation shows how a Boutonniere deformity develops in the finger. It occurs when the central slip of the extensor tendon is damaged, causing the middle joint (PIP) to bend downward and the end joint (DIP) to bend upward. Commonly seen after trauma or rheumatoid arthritis, this condition limits finger extension and function.
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