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Popliteus tendon tenosynovitis

G W Mayfield

    The American Journal of Sports Medicine
    |January 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Popliteus tendon tenosynovitis is a common knee condition, often mistaken for meniscus tears. It is strongly linked to downhill running and may affect sedentary individuals increasing activity.

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    Area of Science:

    • Orthopedics
    • Sports Medicine
    • Biomechanics

    Background:

    • Tenosynovitis of the popliteus tendon is increasingly recognized as a cause of lateral knee pain.
    • It is often misdiagnosed as a lateral meniscus tear, leading to unnecessary procedures.
    • Activities involving downhill motion are frequently implicated.

    Purpose of the Study:

    • To highlight the prevalence and clinical presentation of popliteus tendon tenosynovitis.
    • To differentiate this condition from lateral meniscus tears.
    • To explore the biomechanical factors contributing to its development.

    Main Methods:

    • Case series analysis.
    • Clinical examination including palpation of the lateral knee.
    • Review of patient activity history, particularly running and hiking.

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  • Preliminary analysis of gait movies and EMG studies.

    • Main Results:

    • Popliteus tendon tenosynovitis is more common than previously thought.
    • Symptoms are correlated with downhill running, walking, and backpacking descents.
    • Patients are typically active individuals, often physicians, experiencing onset during increased activity.
    • Gait analysis suggests increased stress on the popliteus tendon during downhill deceleration.

    Conclusions:

    • A high index of suspicion and accurate palpation are key for diagnosing popliteus tendon tenosynovitis.
    • Recognition of this entity can prevent misdiagnosis and unnecessary meniscectomy.
    • Increased stress during downhill activities likely contributes to the inflammation of the popliteus tendon.
    • The condition may become more prevalent with the rise of running for cardiovascular conditioning.