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Re: Bone Fracture of Weightlifter

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  • Re: Bone Fracture of Weightlifter

    I'm sure that the bone was stronger than it would have been if he had not
    been weightlifting. It just wasn't strong enough for that load applied
    in that particular fashion. The comminution (free piece)is
    characteristic of higher energy injuries to the bone.

    Bone is a complicated material which is polyphasic in nature and responds
    differently to tension (weaker) than compression (stronger). The
    mechanical properties do depend on the relative mineral composition (ie
    collagen to mineral, plus lots of other substances). Osteoporotic bone
    is weaker. Paradoxically, osteopetrotic bone can also be weaker because
    the microstructrue is altered.

    I'm sure that I could dig up a more detailed explanation from Norden and
    Frankel if necessary.

    In short, he overloaded the bone, even though it was strong, just not
    strong enough!

    Chris Hamilton, MD
    University of Texas Medical Branch
    Department of Orthopaedic Surgery