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Posted: Sep 5 2025

extensor appratus of the finger (english)

Video Description

“Have you ever wondered how such a thin tendon on the back of your finger can let you write, type, or even wave goodbye? The extensor apparatus is not just a tendon – it’s an engineering masterpiece, more complex than a suspension bridge. One tiny rupture, and the finger goes from precision to paralysis. Today, we’ll unlock the hidden mechanics: who really extends the MCP? Who takes care of the PIP and DIP? And why, in swan-neck deformity, the finger bends into a question mark?”


“The extensor mechanism is not a single structure – it’s a network: EDC, lumbricals, interossei, and three key ligaments (sagittal band, TRL, ORL). A single imbalance ? dramatic deformity.”


#HandAnatomy #ExtensorApparatus #SurgicalAnatomy #OrthopedicTeaching #HandSurgery #MedicalStudents #OSCEprep #VivaRevision #Orthopedics #AnatomyMadeSimple



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