New Approaches to Treat Osteoarthritis with Mesenchymal Stem Cells

Figure 4

(a) Pretreatment proton density- (PD-) weighted coronal and sagittal MRI images of the knee showing the isolated chondral defect involving the central weight-bearing area of the medial femoral condyle. (b) Posttreatment PD-weighted coronal and sagittal MRI imaging at 18 months indicating articular cartilage regeneration at the site of the osteochondral defect [74].

(a)

(b)