"Currently, you've got to have an abnormal X-ray to show clear evidence of knee osteoarthritis ... be detected by blood biomarkers well before X-rays can detect OA," Kraus said.

Table 1 summarises the estimates of prevalence from the studies reviewed of persons with knee pain found to have x ray abnormalities consistent with radiographic knee OA. Knee pain was the most ...

A blood test could detect osteoarthritis in the knees up to eight years before it appears on X-rays – leading to hopes ... occurs when cartilage in the knee joint breaks down, causing it to ...