41-year-old male that in the past decade had suffered 2-3 times a year from bilateral knee pain which resolved spontaneously. Last year he had episodes of thumb pain that had lasted for several weeks and had affected grasp movements. The patient had responded to NSAID treatment for 2 weeks. MRI of the right knee showed Mild endoarticular effusion in the sub-quadriceps recess, chondropathy of the femoropatellar joint and lesion of the medial meniscus.
65-year-old female that suffers from pain in the left knee underwent examinations that showed femoral-tibial arthrotic manifestations, external degenerative meniscal tear and moderate joint effusion. A diagnosis of external degenerative meniscal tear was established. Further medical tests showed marked degeneration of the meniscal fibrocartilage, diffuse femoral-tibial arthrotic abnormalities, subchondral cysts and edema of the spongious bone, as well as rarefaction of the cartilage matrix, and manifestations of chondropathy.