Background/Aim: Free flap reconstruction with damaged or diseased vessels is a challenging problem. We describe our case series using an arteriovenous loop or bypass surgery with free flaps for complex defect reconstructions at the lower extremity and the pelvic region. Patients and Methods: In this single-center retrospective cohort study 11 consecutive patients (mean age=73 years, range=53-88 years) were operated on, between June 2016 and August 2018. Patients were reconstructed with free gracilis flaps (n=8), free latissimus dorsi flap (n=1) and chimeric scapular flap (n=1), respectively. Results: The mean loop length was 30 cm (range=12-40 cm). The loop/bypass revision rate was 27% (3/11), and the overall flap loss rate was 20% (2/10). After a mean follow-up time of 17 months (range=12-24 months), the limb salvage rate was 75% (6/8). Conclusion: We successfully reconstructed complex defects with poor recipient vessels using arteriovenous loops or bypass surgery and free flaps.

中文翻译：

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动静脉环可在其他地方供体和受体血管不足的情况下实现自由组织转移

背景/目的：带有受损或患病血管的游离皮瓣重建是一个具有挑战性的问题。我们描述了我们的病例系列，使用动静脉袢或搭桥手术和游离皮瓣在下肢和骨盆区域进行复杂的缺损重建。患者和方法：在这项单中心回顾性队列研究中，2016 年 6 月至 2018 年 8 月期间，连续 11 名患者（平均年龄 = 73 岁，范围 = 53-88 岁）接受了手术。 8) 分别为游离背阔肌皮瓣 (n=1) 和嵌合肩胛皮瓣 (n=1)。结果：平均环长度为 30 厘米（范围 = 12-40 厘米）。环/旁路翻修率为 27% (3/11)，总皮瓣丢失率为 20% (2/10)。平均随访 17 个月（范围=12-24 个月）后，保肢率为 75%（6/8）。