title: The posterior approach to popliteal-crural bypass.
abstract: OBJECTIVE
  An evaluation of the posterior approach to popliteal-crural bypass was performed to assess the feasibility and results of this technique.
  
  
  METHODS
  A posterior approach to the popliteal and crural vessels was performed in 21 patients in the prone position over a 24-month period, with use of lesser saphenous vein and a novel exposure of the crural arteries through the vein harvest incision.
  
  
  RESULTS
  Diabetes mellitus was present in 17 (81%) patients, and all had limb-threatening ischemia with rest pain (15 patients, 71%), ulceration (7 patients, 33%), and gangrene (8 patients, 38%). The inflow site was the supragenicular popliteal artery in four patients (19%) and the infragenicular popliteal artery in 17 patients (81%). The outflow sites were the tibioperoneal trunk in six patients (29%), the peroneal artery in nine patients (43%), the posterior tibial artery in four patients (19%), and the anterior tibial artery in two patients (10%). The distal anastomosis was performed in the proximal one third of the crural artery in 16 (76%) of the patients, with a mean lesser saphenous vein graft length of 11.2 +/- 1.7 cm. The toe-brachial pressure indexes rose from 0.20 +/- 0.07 to 0.77 +/- 0.16 (p = 0.001), all wounds healed without complication, and 19 patients (90%) were discharged with open bypass grafts and salvaged extremities. The 6-, 12-, and 18-month primary graft patency rates were 88%, 88%, and 83%, respectively (Kaplan-Meier methods).
  
  
  CONCLUSIONS
  Thus the posterior approach to infragenicular occlusive disease represents a durable alternative to traditional approaches; sparing the greater saphenous vein, facilitating exposure of the proximal crural arteries, and minimizing the wound healing problems commonly experienced with standard techniques.
authors.affiliation: Department of Surgery, University of Rochester, NY 14642.
authors.forename: K
authors.initials: K
authors.lastname: Ouriel
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001166:Arteriovenous Shunt, Surgical / Q000379:methods*; D005260:Female; D006083:Graft Occlusion, Vascular / Q000453:epidemiology; D006801:Humans; D007511:Ischemia / Q000503:physiopathology / Q000601:surgery*; D007866:Leg / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D011150:Popliteal Artery / Q000503:physiopathology / Q000601:surgery*; D011183:Postoperative Complications / Q000453:epidemiology; D012501:Saphenous Vein / Q000637:transplantation*; D013997:Time Factors; D014654:Vascular Patency