case_images: PMC5458689_01
case_images: Pre-operative anterioposterior X-ray of both knee showing osteoarthritis (left>right).
case_images: JOCR-7-16-g001.jpg
case_images: PMC5458689_01_JOCR-7-16-g001.jpg
case_images: F1
case_images: X-rays of the left knee (Fig. 1) showed advanced osteoarthritis, and she was advised for left TKA.
case_images: Ultrasonography Doppler study showing a large thrombus in the femoral vein.
case_images: JOCR-7-16-g002.jpg
case_images: PMC5458689_01_JOCR-7-16-g002.jpg
case_images: F2
case_images: Doppler ultrasound of the lower extremity was done which showed acute thrombosis involving femoral and popliteal vein in the left leg (Fig. 2).
case_images: Computed tomography scan image showing inferior vena cava filter in situ.
case_images: JOCR-7-16-g003.jpg
case_images: PMC5458689_01_JOCR-7-16-g003.jpg
case_images: F3
case_images: 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).
case_images: (a) Post-operative anterioposterior X-ray of left knee. (b) Post-operative lateral X-ray of left knee.
case_images: JOCR-7-16-g004.jpg
case_images: PMC5458689_01_JOCR-7-16-g004.jpg
case_images: F4
case_images: USA) on the left side was done (Fig. 4a and b) under general anesthesia.