Knee MRI scans in a 57-year-old male participant in the Osteoarthritis Initiative who was administered a hyaluronic acid injection. (IMAGE)

Radiological Society of North America

Knee MRI scans in a 57-year-old male participant in the Osteoarthritis Initiative who was administered a hyaluronic acid injection.

Caption

Knee MRI scans in a 57-year-old male participant in the Osteoarthritis Initiative who was administered a hyaluronic acid (HA) injection. Coronal intermediate-weighted knee MRI scans obtained (A) 2 years before injection, (B) at the time of injection, and (C) 2 years after injection show a well-preserved medial femoral cartilage, indicating a stable medial femoral cartilage through the pre- and postinjection time points. The medial femoral cartilage appears well-preserved across all three time points, suggesting no structural deterioration following the HA injection. These findings indicate stable cartilage morphologic structure during the 4-year observation period.

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Radiological Society of North America (RSNA)

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