This is an anteroposterior (AP) knee X-ray of severe #osteoarthritis (OA). It features a #LOSS #mnemonic to identify the four key radiographic findings: #Loss of joint space (joint narrowing), #Osteophyte formation (bone spurs), #Subchondral #sclerosis (increased bone density), and #Subchondral #cysts. The image points out the narrowed space, white sclerosis, extra bone formation, and cysts on both the femur and tibia. 
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