The management of aneurysms and arterio-venous fistulae of the popliteal artery arising from war trauma. Emphasis on sigmoid operative approach. Between 1986-1988, 600 vascular cases arising from the Iran-Iraq conflict were dealt with within an 18 month period and 60 cases of popliteal artery and/or venous disruption were encountered presenting at variable times after injury. A policy of management between the forward and base hospital surgical teams was introduced, observing the following broad categorizations: (a) assessment/referral, (b) assessment/fasciotomy/referral, (c) immediate operation/referral for further operation/review/management. Two types of incision were used to enter the popliteal fossa: (a) a medial incision and (b) a sigmoid posterior incision (which we now favor). The results of this strategy of management and operative technique (when compared with our previous experience within the same time frame) suggested an improved outcome. Fifty-four out of 60 cases had a satisfactory operative result with below-knee amputation being required in only four cases and higher amputations in two others. No operative or postoperative deaths occurred. The implementation of this "vetting policy" at the front line appeared to reduce the number of amputations and assisted the clarification of management criteria in assessing limb viability at the forward hospital when a large number of casualties were being received. Operative access using the sigmoid posterior incision was not associated with any complications, offered better exposure than the medial incision and was technically easier for the surgeon to perform. 