Study of 67 OA TKR pts looked for CPPD - defined as "appears as linear/punctate opacities w/in cartilage, synovium, Jt capsule or tendons/entheses". Xrays had specificity of 92%, sensitivity 54%, PPV 88%, NPV 66% (needs to be distinguished from BCP) https://t.co/Nd9FZKyOHy https://t.co/m9PYofGE04