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

Figure 3

TRAP on focal osteochondral samples from DL and OCD. (a) Representative TRAP immunostained section of focal osteochondral lesion from DL and OCD. Bars 100 μm. (b) Percentage of TRAP-positive cells in bone compartment of DL (number of fragments/sections = 21/21) and OCD (number of fragments/sections = 22/22). Data are expressed as median with 10th–90th percentile (whiskers). . (c) Percentage of TRAP-positive cells in bone associated with histological score level (low, medium, and high). Data are expressed as median with 10th–90th percentile (whiskers). .

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