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Related Experiment Videos

[Carpal instability. Diagnostic considerations and clinical study].

J P Meyrueis

    Annales De Chirurgie De La Main : Organe Officiel Des Societes De Chirurgie De La Main
    |January 1, 1984
    PubMed
    Summary

    Diagnosing carpal deviations relies on radiographic imaging. Measuring the radiolunar angle on wrist X-rays can effectively screen for carpal instability, with specific angles indicating pathology.

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    Area of Science:

    • Orthopedics
    • Radiology
    • Sports Medicine

    Background:

    • Carpal deviations often lack distinct clinical signs, making diagnosis challenging.
    • Clinical assessment becomes more reliable when intermittent carpal malalignment causes instability, such as in "trick wrist" injuries.

    Purpose of the Study:

    • To establish a radiographic method for screening carpal instabilities.
    • To define objective radiographic parameters for diagnosing carpal instability.

    Main Methods:

    • Utilizing neutral position lateral views of the wrist for radiographic assessment.
    • Measuring the radiolunar angle to screen for carpal instabilities.

    Main Results:

    • A dorsal radiolunar angle exceeding 25 degrees is considered pathologic.
    • A palmar radiolunar angle exceeding 10 degrees is considered pathologic.

    Conclusions:

    • Radiographic measurement of the radiolunar angle is a sufficient screening tool for carpal instabilities.
    • Specific angular measurements can reliably indicate pathologic carpal alignment and instability.

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