case_images: PMC6458944_01
case_images: Image shows the patient's left knee upon arrival at the ED, after a fall from a bicycle (a). It is possible to notice that there is no bulging in the anterior region of the knee found in the VDP. SDP is suspected based on the attachment of the distal end of the patella to the proximal end of the trochlea (arrow). The high riding patella needs to be distinguished from a patellar tendon rupture (b). Radiograph of the left knee obtained after the procedure shows successful reduction (c). ED: emergency department; SDP: superior dislocation of the patella.
case_images: CRIM2019-7314698.001.jpg
case_images: PMC6458944_01_CRIM2019-7314698.001.jpg
case_images: fig1
case_images: She presented with severe pain and an anteromedial skin bruise on the left knee and her knee locked in full extension (Figure 1(a)). A plain control radiograph was obtained following this procedure and showed complete reduction of the patellofemoral joint (Figure 1(c)).