title: An absorbable pinned-ring device for microvascular anastomosis of vein grafts: experimental studies.
abstract: In the rabbit, posterior facial vein segments were grafted to the femoral arteries using either conventional suture technique or a mechanical absorbable pinned-ring device. The purpose of this study was to compare patency rates and anastomotic times for the two different methods. The anastomoses were evaluated macroscopically and using light and scanning electron microscopy. The grafts anastomosed with the absorbable rings exhibited 100% patency, while only 83% of the sutured grafts were patent. The mean anastomotic time using the mechanical pinned-ring device was 18.1 min (range 9.8-30 min). The conventionally sutured anastomoses were completed in a mean time of 60 min (range 50-75 min). The experiment has confirmed that the absorbable pinned-ring device provides a safe and fast way to perform microvascular anastomosis.
authors.affiliation: Department of Orthopaedic Surgery, Hiroshima University School of Medicine, Japan.
authors.forename: W
authors.initials: W
authors.lastname: Qu
authors.forename: H
authors.initials: H
authors.lastname: Muneshige
authors.forename: Y
authors.initials: Y
authors.lastname: Ikuta
mesh_terms: D020341:Absorbable Implants; D000714:Anastomosis, Surgical / Q000295:instrumentation*; D000818:Animals; D001672:Biocompatible Materials; D004547:Elastic Tissue / Q000473:pathology / Q000648:ultrastructure; D004730:Endothelium, Vascular / Q000473:pathology / Q000648:ultrastructure; D004867:Equipment Design; D005145:Face / Q000098:blood supply*; D005263:Femoral Artery / Q000473:pathology / Q000601:surgery* / Q000648:ultrastructure; D019344:Lactic Acid; D008297:Male; D008855:Microscopy, Electron, Scanning; D008866:Microsurgery / Q000295:instrumentation*; D009131:Muscle, Smooth, Vascular / Q000473:pathology / Q000648:ultrastructure; D011100:Polyglycolic Acid; D000077182:Polylactic Acid-Polyglycolic Acid Copolymer; D011108:Polymers; D011817:Rabbits; D012449:Safety; D013193:Stainless Steel; D013536:Suture Techniques / Q000295:instrumentation; D013537:Sutures; D013997:Time Factors; D017539:Tunica Intima / Q000473:pathology / Q000648:ultrastructure; D017540:Tunica Media / Q000473:pathology / Q000648:ultrastructure; D014654:Vascular Patency; D014680:Veins / Q000473:pathology / Q000637:transplantation* / Q000648:ultrastructure
chemical_list: D001672:Biocompatible Materials; D011108:Polymers; D013193:Stainless Steel; D000077182:Polylactic Acid-Polyglycolic Acid Copolymer; D011100:Polyglycolic Acid; D019344:Lactic Acid