A Case of Spontaneous Osteonecrosis of the Knee with Early and Simultaneous Involvement of the Medial Femoral Condyle and Medial Tibial Plateau

Figure 4

Intraoperative findings. (a) The black asterisk shows the posterior end of SPONK in the MFC, and the white asterisk shows the anterior end of SPONK in the MTP. (b, d) Articular and (c, e) back sides of the (b, d) MFC and (d, e) MTP specimens obtained during UKA. Focal lesions were clearly present in (c) and (e) (arrowhead).

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(b)

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