PMC5458689_01
Pre-operative anterioposterior X-ray of both knee showing osteoarthritis (left>right).
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F1
X-rays of the left knee (Fig. 1) showed advanced osteoarthritis, and she was advised for left TKA.
Ultrasonography Doppler study showing a large thrombus in the femoral vein.
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F2
Doppler ultrasound of the lower extremity was done which showed acute thrombosis involving femoral and popliteal vein in the left leg (Fig. 2).
Computed tomography scan image showing inferior vena cava filter in situ.
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F3
Retrievable IVC filter (OPTEASE  Retrievable Vena Cava Filter, Cordis Corporation) was implanted through right femoral vein under fluoroscopy guidance one day before the surgery (Fig. 3).
(a) Post-operative anterioposterior X-ray of left knee. (b) Post-operative lateral X-ray of left knee.
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F4
USA) on the left side was done (Fig. 4a and b) under general anesthesia.