FIG. 9.

Histology analysis using hematoxylin and eosin staining. A medial cut was made on the spinal column of each rat. The progress of this specimen guides the analysis of the other specimens. Arrows denote areas of endochondral ossification. (A, B, D, F, and I) Rat was treated with the presculpted PETA:HA (80:20) scaffold. (C, E, and G) Rats were treated with PETA:HA (80:20) scaffold foamed in situ. (H) Rat was treated with PETA:HA (100:0) foamed in situ. S, scaffold implants; *, site endochondral ossification. Color images available online at www.liebertpub.com/tea