title: Randomized trial comparing infrainguinal polytetrafluoroethylene bypass grafting with and without vein interposition cuff at the distal anastomosis. The Joint Vascular Research Group.
abstract: OBJECTIVE
  A multicenter randomized prospective study was undertaken to determine whether an interposition vein cuff improved the short-term and medium-term patency and limb salvage rates of femoral-above-knee and femoral-below-knee popliteal artery polytetrafluoroethylene (PTFE) bypass procedures.
  
  
  METHODS
  Two hundred sixty-one bypass operations were randomized (133 to vein cuff and 128 to no vein cuff). One hundred fifty grafts were to the above-knee popliteal artery, 96 to the below-knee popliteal artery, and 15 to tibial vessels. The median follow-up was 617 days.
  
  
  RESULTS
  The 12-month patency rates for cuffed and uncuffed above-knee popliteal artery PTFE bypass grafts were 80% and 84%, and the 2-year patency rates were 72% and 70%, respectively. The patency rates for bypass grafts to the below-knee popliteal artery at 12 months were 80% and 65% and at 2 years 52% and 29%, respectively (p = 0.03). At the below-knee site, this was reflected in 24-month difference in limb salvage rates of 84% and 62%, respectively (p = 0.08).
  
  
  CONCLUSIONS
  There was no improvement in the patency rate with the use of a distal anastomosis interposition vein cuff in femoral-above-knee popliteal PTFE bypass grafts, but there was a statistically significant advantage when PTFE bypass grafts were anastomosed to the popliteal artery below the knee.
authors.affiliation: Department of Surgery, Ninewells Hospital, Dundee, Scotland, United Kingdom.
authors.forename: P A
authors.initials: PA
authors.lastname: Stonebridge
authors.forename: R J
authors.initials: RJ
authors.lastname: Prescott
authors.forename: C V
authors.initials: CV
authors.lastname: Ruckley
mesh_terms: D000368:Aged; D000671:Amputation, Surgical; D000714:Anastomosis, Surgical; D019917:Blood Vessel Prosthesis Implantation / Q000379:methods*; D005260:Female; D005263:Femoral Artery / Q000601:surgery*; D006801:Humans; D007866:Leg / Q000601:surgery; D015993:Life Tables; D008297:Male; D011138:Polytetrafluoroethylene; D011150:Popliteal Artery / Q000601:surgery*; D011183:Postoperative Complications; D011446:Prospective Studies; D012086:Reoperation; D014654:Vascular Patency; D014680:Veins / Q000601:surgery
chemical_list: D011138:Polytetrafluoroethylene