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    • Subcategory of 'Diagnosis' designed to be very sensitiveRule Out
    • Disease is diagnosed: prognosticate to guide treatmentPrognosis
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    Attention COACH STUDY participants:

    The principal investigators of the study request that you use the official version of the modified score here.

    STONE Nephrolithometry Score for Renal Calculi

    Predicts recurrence of kidney stone based on radiological criteria.
    When to Use
    Why Use

    The patient with renal -- not ureteral -- stones.

    Patients with renal stones can be difficult to assess and prognosticate.

    0-399
    +1
    400-799
    +2
    800-1599
    +3
    >1600
    +4
    ≤100
    +1
    >100
    +2
    No/mild hydronephrosis
    +1
    Moderate/severe hydronephrosis
    +2
    1-2
    +1
    3
    +2
    Full staghorn stone
    +3
    ≤950
    +1
    >950
    +2

    Result:

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    Next Steps
    Evidence
    Creator Insights
    Dr. Zeph Okeke

    About the Creator

    Zeph Okeke, MD, is a practicing urologic surgeon, specializing in endourology, minimally invasive surgery and laparoscopy, at North Shore-LIJ Medical Group. He is also an assistant professor at Hofstra North Shore-LIJ School of Medicine and co-director of the Smith Institute for Urology endourology and laparoscopy fellowship training programs. Dr. Okeke's research interests include surgical outcomes of kidney stone patients and grading, and characterizing complex kidney stones to guide surgery.

    To view Dr. Zeph Okeke's publications, visit PubMed

    Are you Dr. Zeph Okeke? Send us a message to review your photo and bio, and find out how to submit Creator Insights!
    MDCalc loves calculator creators – researchers who, through intelligent and often complex methods, discover tools that describe scientific facts that can then be applied in practice. These are real scientific discoveries about the nature of the human body, which can be invaluable to physicians taking care of patients.
    About the Creator
    Dr. Zeph Okeke
    Are you Dr. Zeph Okeke?