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(A) AP radiograph of the both knees. (B) Lateral radiograph of the right knee. (C) Lateral radiograph of the left knee.
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F1
The radiographs of both knees showed soft tissue swelling and high-riding patellae, indicating sleeve fractures (Figures 1A-C).
(A) Sagittal T2 MRI of the right knee. (B) Sagittal T2 MRI of the left knee.
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F2
Magnetic resonance imaging (MRI) was then performed to confirm the diagnoses of quadriceps tendon tear and patellar sleeve fracture and better reveal the extent of the displaced bony fragments (Figures 2A,B).
(A) Post-operative AP radiograph of the both knees. (B) Post-operative lateral radiograph of the right knee. (C) Post-operative lateral radiograph of the right knee.
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F3
The postoperative radiographs are shown in Figures 3A-C.
Post-operative AP radiograph of the both knees after removal of Kirschner and cerclage wires.
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F4
The x-rays images after removal of Kirschner and cerclage wires are shown in Figure 4.