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    Lunate Dislocation

    Lunate Dislocation is a topic covered in the 5-Minute Emergency Consult.

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    Basics

    Description

    • Dislocation of the lunate relative to the radius and distal row of metacarpals, most are volar but can be dorsal.
    • Usually from high-energy hyperextension with ulnar deviation of the wrist.

    Etiology

    • Implies disruption of all 4 perilunate ligaments and radiocarpal ligament (Mayfield classification, stage IV)
    • In volar dislocations, median nerve injury occurs in the carpal tunnel.
    • Associated fractures of the radial styloid, scaphoid, capitate, and triquetrum are common and, if present, should raise suspicion of an occult perilunate ligamentous injury.

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    Citation

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    TY - ELEC T1 - Lunate Dislocation ID - 307164 ED - Barkin,Adam Z, ED - Barkin,Roger M, ED - Hayden,Stephen R, ED - Rosen,Peter, ED - Schaider,Jeffrey J, ED - Shayne,Philip, ED - Wolfe,Richard E, BT - 5-Minute Emergency Consult UR - https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307164/all/Lunate_Dislocation PB - Lippincott Williams & Wilkins ET - 5 DB - Emergency Central DP - Unbound Medicine ER -