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    Humerus Fracture

    Humerus Fracture is a topic covered in the 5-Minute Emergency Consult.

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    Basics

    Description

    • Proximal humeral fractures:
      • Typically described as nondisplaced, displaced, and/or fracture/dislocation
      • Account for 5% of all fractures
      • Increased incidence with age
      • 4:1 female to male
      • Vast majority of patients are >60 yr old
      • 3rd most common osteoporotic fracture, after hip and distal radius fractures
      • Neer classification: A system that identifies the number of fragments and their location:
        • Fractures consist of 2–4-part fractures; the locations include the anatomic neck, surgical neck, greater tuberosity, and lesser tuberosity.
        • Fracture/dislocations also part of the Neer classification
    • Humeral shaft fractures:
      • Account for <3% of fractures
      • May be spiral, oblique, or transverse
      • Humeral shaft fractures (AO classification):
        • Simple
        • Wedge
        • Comminuted (complex)

    Etiology

    • Proximal humerus fractures:
      • Most often a history of a fall (low energy)
      • Most common is fall on outstretched hand
      • Less common is violent muscle contraction from shock or seizure or higher-energy injury
    • Humeral shaft fractures:
      • High-energy direct trauma (penetrating or blunt) or bending force
      • Less common from fall
      • Stress fractures from throwing injury

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    Citation

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    TY - ELEC T1 - Humerus Fracture ID - 307650 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/307650/all/Humerus_Fracture PB - Lippincott Williams & Wilkins ET - 5 DB - Emergency Central DP - Unbound Medicine ER -