[Modified histotechnical procedure for tissue evaluation of microvascular prostheses (author's transl)].

Porous silicone microvascular prostheses with a 1 mm inside diameter were inserted in the infrarenal part of the abdominal aorta of 35 rats. By modifying the usual histotechnical procedures like using paraffin with high consistence, embedding the specimen under vacuum and icing the sectional plane it was mde possible to produce perfect histological sections which guaranteed an exact histological evaluation of the implanted microvascular prostheses.