Some experimental and clinical reports have shown the feasibility of the use of polydioxanone in vascular surgery. In this study polydioxanone and polypropylene suture materials were used in free internal mammary artery (IMA) graft anastomoses, which were made in 8 dogs from the left IMA to the left anterior descend ing coronary artery one free graft af ter another. Nine polydioxanone and nine polypropylene anastomoses were studied at six months with light mi pylene anastomoses, in which the su ture material was seen bulging up from the flow surface. According to this experimental study polydiox anone is as reliable as polypropylene and has some superior features over polypropylene in small luminal vas cular anastomoses.
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