Focal Defects of the Knee Articular Surface: Evidence of a Regenerative Potential Pattern in Osteochondritis Dissecans and Degenerative Lesions

Figure 1

Safranin O staining on focal osteochondral samples from DL and OCD. (a) Representative Safranin O stained section of focal osteochondral lesion from DL and OCD. Bars 100 μm. (b) Total histological score and cartilage and bone score of DL (number of fragments/sections = 21/63) and OCD (number of fragments/sections = 22/66). Data are expressed as median with 10th–90th percentile (whiskers). and .

(a)

(b)