This x-ray, taken while the patient is standing, shows that the tibiofemoral joint space in the medial compartment of both knees is narrow, particularly on the left. Marginal osteophytes are visible. There is attrition of the left medial tibial plateau.
By permission of the publisher. From Myers S: Atlas of Rheumatology. Edited by G Hunder. Philadelphia, Current Medicine, 2005.