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

Figure 7

Two-year postoperative MRI. (a) Axial metal artifact reduction sequence (MARS) image demonstrates previous trochlear osteochondral allograft well integrated with intact articular cartilage. (b) T2 mapping axial image with thinning of medial and lateral patellar facets. (c) Additional axial image. (d) Sagittal MARS proton density-fat suppression image demonstrating maintained trochlear implant congruity and bone incorporation; slight thinning at the inferior patellar articular cartilage is demonstrated as well.

(a)

(b)

(c)

(d)