PMC6079500_01
Preoperative anteroposterior and lateral radiographs of the knee demonstrated a mild osteoarthritis with a large cystic lesion of the lateral femoral condyle.
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Anteroposterior and lateral radiographs of the knee demonstrated a mild osteoarthritis (grade II according to Kellgren and Lawrence) with a large cystic lesion of the lateral femoral condyle (Figure 1).
T2-weighted coronar (a) and sagittal (b) MR images of the right knee showing a giant cystic lesion of the lateral femoral condyle.
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MRI demonstrated a cystic lesion of a size of 4.2 x 3.1 x 1.2 cm with hypointensity on T1-weighted and hyperintensity on T2-weighted images (Figure 2).
After curettage of the bone cyst, 15 ml of Cerament was inserted to augment the lateral condyle.
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Intraoperatively, 15 ml of Cerament were necessary to augment the cyst (Figure 3).
The augmented bone area of the lateral condyle became evident after the distal dorsal cutting of the femur.
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During preparation for the total knee arthroplasty and the distal, dorsal cutting of the femur, the augmented bone area of the lateral condyle was evident (Figure 4).
Lateral view of the operative situs after implantation of the knee endoprosthesis.
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Stryker, Duisburg, Germany) (Figure 5).
Postoperative radiographs of the right knee confirmed the correct position of the prosthesis and a proper filling of the large bone cyst with Cerament.
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Postoperative radiographs of the right knee confirmed the correct position of the prosthesis and a proper filling of the large bone cyst with Cerament (Figure 6).
Excellent osseointegration of Cerament 4 months after filling of the giant bone cyst.
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Postoperative radiographs of the knee showed an excellent osseointegration of Cerament (Figure 7).