Background: Degenerative change in articular cartilage is one of the most important factors in the development of osteoarthritis. Shear wave elastography can be used to identify pathologic cartilage.
Purpose: To evaluate distal femoral cartilage by shear wave elastography in patients with symptomatic knee osteoarthritis.
Material And Methods: Twenty patients with bilateral knee osteoarthritis (study group) and 20 volunteers with the same demographic characteristics but without symptomatic knee pain (control group) were included in the study. A total of 80 knee joints of 40 individuals were evaluated. At the medial, intercondylar, and lateral condylar levels distal femoral cartilage thickness was measured by B-mode ultrasonography and stiffness was measured by shear wave elastography.
Results: The medial, intercondylar, and lateral cartilage thickness measurements were similar between the two groups and no statistically significant difference was observed ( = 0.711, = 0.766, and = 0.575, respectively). The shear wave velocity values in the medial and intercondylar cartilage were significantly higher in the study group ( = 0.002). Shear wave velocity values measured from lateral cartilage were higher in the study group and the difference between the groups had a borderline statistical significance ( = 0.053).
Conclusion: Shear wave elastography seems to be a reliable, non-invasive, and acceptable method for the assessment of pathologic cartilage.
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