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    Perthes Disease

    • SCENARIO: < 8yo [Herring]
    • SCENARIO > 8yo [Herring]
    • > 10 YO OR ADULT PERTHES HIP
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    Why Perthes occur in this age group?
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    How do you assess a child with a limp? Differentials?
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    Why does Hip pathology lead to knee pain?
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    What is Perthes Disease?
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    What are the differential diagnosis of perthes?
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    What are the risk factors of Perthes?
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    What clinical findings? Which ROM is limited?
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    What is hinge abduction?
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    What are the classical XR features to mention?
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    Why is there widened medial joint space?
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    What is the best way to detect subluxation?
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    What are the stages of this disease?
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    How do you classify severity?
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    How to differentiate early vs late fragmentation?
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    What are the Hip at risk signs (by Catterall)? (5)
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    What is the Stulberg Classification?
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    When does Coxa magna correlate to the Stulberg?
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    What are the outcomes of each Stulberg stage?
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    What is the Herring's paper in 2004?
    ‣
    What is the goal of treatment in Perthes?

    SCENARIO: < 8yo [Herring]

    ‣
    How will you manage a < 8 yo with Perthes?

    SCENARIO > 8yo [Herring]

    ‣
    How will you manage > 8yo with perthes?
    ‣
    What are the containment surgeries?
    ‣
    Why does the GT overgrowth? How to manage?

    > 10 YO OR ADULT PERTHES HIP

    In this case, there is likely hinge abduction ➔ likely limited ROM and limited abduction, with trendlenburg gait ➔ will require VALGUS osteotomy
    In this case, there is likely hinge abduction ➔ likely limited ROM and limited abduction, with trendlenburg gait ➔ will require VALGUS osteotomy
    ‣
    Why > 10 year old, we see them differently?
    ‣
    What salvage procedures?
    ‣
    What are the various shapes of the head?
    ‣
    What is the sagging rope sign?
    ‣
    KKH Tutorial and Perthes Treatment Algorithm
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