Medical History MCS, 67 years old, female, retired, goes to an orthopaedist complaining about pain in both knees, with eight years of evolution. She reports that he pain is worse in the end of the day and that it remains even at rest, and the use of painkillers with little improvement. She also reports swelling of the left knee in some occasions. After the clinical examination and the analysis of the radiography requested (image), bilateral gonarthrosis was diagnosed. Image 1: Posterior-anterior radiography of the right kneeImage 2: Posterior-anterior radiography of the left kneeImage 3: Lateral radiography of the left kneeImage 4: Lateral radiography of the right knee Question:Based on the radiologic alteration and its etiology in the gonarthrosis, choose the incorrect answer. a) Osteophyte - An attempt of increase the area of load distribution b) Subchondral cyst - due to micro fractures with synovial liquid penetration c) Subchondral sclerosis - Represents the loss of bone mass d) Decreased joint space - Loss of cartilaginous mass Time is Up! Time's up
