Fig. 1From: Cryopreserved, Thin, Laser-Etched Osteochondral Allograft maintains the functional components of articular cartilage after 2 years of storagea The T-LE Allograft: the smooth articular surface (AS) and deep surface (DS) with laser-etching (LE) are pictured. b–e A structural comparison of the cross section of the cryopreserved T-LE Allograft (b, c) to fresh articular cartilage (d, e) with H&E (b, d) and Safranin-O (c, e) demonstrates the intact structure of native cartilage. Flattened, concentrated chondrocytes can be seen at the articular surface (AS) of the graft, with the orientation of chondrocytes elongating with the tissue depth. Laser-etching (LE) can be seen on the deep surface (DS) of the graft. Scale bar = 100 μmBack to article page