PMC8528624_01
(a) Anteroposterior radiograph of the knee from case 1 at presentation in the emergency room. (b) Lateral radiograph of the knee from case 1 at presentation in the emergency room.
CRIOR2021-9935401.001.jpg
PMC8528624_01_CRIOR2021-9935401.001.jpg
fig1
CRP were within normal limits. Conventional X-rays of the right knee indicated anterior to posterior tibiofemoral dislocation of the Genesis PS knee prosthesis (Figures 1(a) and 1(b)).
PMC8528624_02
(a) Anteroposterior radiograph of case 2 at presentation in the emergency room. (b) Lateral radiograph of case 2 at presentation in the emergency room.
CRIOR2021-9935401.002.jpg
PMC8528624_02_CRIOR2021-9935401.002.jpg
fig2
X-rays showed a tibiofemoral dislocation of the knee prosthesis (Figures 2(a) and 2(b)).
PMC8528624_03
(a) Anteroposterior radiograph of case 3 at presentation in the emergency room. (b) Lateral radiograph of case 3 at presentation in the emergency room.
CRIOR2021-9935401.003.jpg
PMC8528624_03_CRIOR2021-9935401.003.jpg
fig3
X-rays showed a tibiofemoral dislocation (Figures 3(a) and 3(b)).
PMC8528624_04
(a) Anteroposterior radiograph of case 4 at presentation in the emergency room. (b) Lateral radiograph of case 4 at presentation in the emergency room.
CRIOR2021-9935401.004.jpg
PMC8528624_04_CRIOR2021-9935401.004.jpg
fig4
X-rays showed a dislocation of the insert of the knee prosthesis (Figures 4(a) and 4(b)).