Long-Term Outcomes of Osteochondral Allograft with Osteogenic Protein-1 Augmentation: A Twelve-Year Follow-Up

Figure 4

Open view. (a) Lesion gauge used to size medial femoral condyle (MFC) lesion. (b) Guide pin centered in MFC lesion. (c) Reamed MFC lesion, 22.5 × 10 mm in diameter. (d) OP-1 implant preparation with normal saline prior to implantation. (e) OP-1 implant placed at the base of reamed defect. (f) 22.5 × 10 mm dowel graft impacted into position.

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