跨供区髂骨皮瓣一期修复肢体大面积骨与软组织缺损

Objective To study the clinical effect of iliac flap straddled donor area to primary repair large defect of bone and soft tissue. Methods Through the anatomical study about iliac flap, the new oper-ation method about iliac flap was designed, which straddled donor area and used one blood vessel stem (deep iliae circumflex artery) and two branch blood vessel(deep iliac circumflex artery and superficial iliac circum-flex artery compounding in series) for blood supply. Blood supply area of the analogical operation was stud-ied by irrigating fresh cadaver with Indian ink. Thirty-two patients with large defect of bone and soft tissue (20 males, 12 females, 17-68 years old, average 36 years old) were repaired by this method, and the hemo-dynamics was studied by laser Doppler flowmetry. Results It was feasible to connect superficial iliac cir-cumflex artery with the branch of deep iliac circumflex artery. Indian ink irrigating fresh cadaver simulate operation showed that area scope dyed by Indian ink: in ilium, Indian ink was found in the bone which was (15.8±3.2) cm away from anterior superior iliac spine. In skin flap, Indian ink was found (8.6±2.4) cm superi-or, (5.4±2.6) cm inferior, (5.8±2.6) cm internal and (24.6±5.8) cm external from the anterior superior iliac spine. Laser Doppler flowmetry showed that the peripheral blood flow of skin flap increased as time passed, the increase speed began to tardy at the third day, then ingress the platform stage. Thirty-two cases were all succeed with functional rehabilitation and perfect shape. Thirty-one cases got completely bone healing; bone healing time ranged from 9 to 19 months, with an average of 12 months. One case turned to chronic os-teomyelitis, and had to suffer operation again, the bone healing time was 22 months. Conclusion As the ili-ae flap straddled donor area has sufficient blood supply, it can repair large defect of bone and soft tissue in one stage.

One-stage repair of large defect of bone and soft tissue with iliac flap straddled donor area