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Functional evaluation of normal and pathologic knees during gait

A N Györy, E Y Chao, R N Stauffer

    Archives of Physical Medicine and Rehabilitation
    |December 1, 1976
    PubMed
    Summary

    Knee joint function is compromised in patients with degenerative joint disease and rheumatoid arthritis, affecting gait parameters like velocity and stride length. Objective clinical and biomechanical assessments correlate, aiding in evaluating treatment effectiveness for knee conditions.

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    Area of Science:

    • Orthopedics
    • Biomechanics
    • Rheumatology

    Background:

    • Knee joint dysfunction significantly impacts mobility and quality of life.
    • Degenerative joint disease (DJD) and rheumatoid arthritis (RA) are common causes of knee impairment.
    • Objective functional assessment is crucial for understanding disease impact and treatment efficacy.

    Purpose of the Study:

    • To evaluate and compare the functional performance of knee joints in healthy individuals, DJD patients, and RA patients.
    • To correlate clinical assessments with biomechanical gait parameters for objective knee function measurement.
    • To determine the utility of gait analysis in evaluating treatment modalities for diseased knees.

    Main Methods:

    • Clinical evaluation including history, physical examination, and radiography.

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  • Biomechanical gait analysis measuring temporal and distance parameters (velocity, cadence, stride length).
  • Assessment of sagittal plane knee motion and stance phase flexion during gait.

    • Main Results:

    • Patients with DJD and RA exhibited significantly reduced gait velocity, cadence, and stride length compared to controls.
    • Marked reduction in sagittal plane knee motion and stance phase flexion was observed in patient groups.
    • Rheumatoid arthritis patients generally showed greater knee function compromise than degenerative joint disease patients.
    • No correlation was found between passive knee motion and active motion during gait.

    Conclusions:

    • Clinical and biomechanical gait parameters provide objective measurements of knee joint function.
    • Gait analysis techniques can effectively evaluate the functional deficits in patients with knee diseases.
    • These methods may serve as valuable tools for assessing the effectiveness of various treatment interventions for knee conditions.