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Removal of the calcified cartilage over the subchondral bone. A 45° open arthroscopic rectangular curette (Smith & Nephew) removes the calcified cartilage (black arrow) over the subchondral bone. White stars are on the healthy cartilage and the black star is on the labral tissue. The curette is introduced from the anterolateral portal and the camera from the modified anterior portal in the left hip.
