PMC6016578_01
(A) The wound of the patient was in a good condition at the third postoperative day; (B) a sterile needle aspiration was performed, with removal of 40 mL of dark bloody fluid at the ninth postoperative day; (C) the yellowish fluid with tofu-like tissue was observed around sinus tract in the knee joint.
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On examination, the patient was observed to have an 8-cm2 area of epidermal scar over the right knee and a 15-cm2 area of myocutaneous flap (Figure 1A) over the medial aspect of the left knee just proximal to the joint line. A sterile needle aspiration was performed, with removal of 40 mL dark bloody fluid (Figure 1B). A sinus tract communicating with knee joint was seen, around which was the yellowish fluid with tofu-like tissue (Figure 1C).
(A) The full length plain of lower extremity; (B) the lateral plain of the left knee; (C) the negative plain X-ray of the left knee. (A-C) Severe degenerative arthritis of the left knee with a low patella and bony fusion of femoral condyle. At 5 months of follow-up the radiographs show, (D) the full length plain of lower extremity; (E) the lateral plain of the left knee; (F) the positive film of the left knee. All the film of left knee revealed the prosthesis was well-fixed without loosening.
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Radiographs demonstrated severe degenerative arthritis of the left knee with patella baja and bony fusion of bilateral femoral condyle (Figure 2A-C). After 5 months of follow-up, the film of the left knee revealed the prosthesis was well-fixed (Figure 2D-F) and laboratory findings were normal.