Koch G, Gutschi S, Pascher O, Fruhwirth H, Glanzer H
Department of Vascular Surgery, Karl-Franzens University, Graz, Austria.
Aust N Z J Surg. 1997 Sep;67(9):637-9. doi: 10.1111/j.1445-2197.1997.tb04614.x.
Polytetrafluoroethylene (PTFE), dacron, and, more recently, collagen prostheses are finding increasing use for femoropopliteal reconstruction when a suitable vein is not available. The main factors to be considered when choosing a prosthesis are patency, susceptibility to infection and formation of aneurysms.
Sheep collagen prostheses were implanted on 274 occasions in the femoropopliteal or crural regions.
The patency rate for supragenual bypass after 3 years was 61.9% with good vascular periphery and 44% with poor vascular periphery. If the prosthesis extended below the knee, the patency rate was 55.4% with good and 35.3% with unfavourable vascular periphery. Patency for the femorocrural bypass was 28.7% after 2 years. The rate of infection was 0% and an aneurysm occurred in three patients (1.1%).
With this low infection rate and very slight danger of aneurysm, the long-term results suggest that the ovine collagen prosthesis can be recommended for use when no suitable vein is available.
当没有合适的静脉可用时，聚四氟乙烯（PTFE）、涤纶，以及最近的胶原蛋白假体在股腘动脉重建中的应用越来越广泛。选择假体时需要考虑的主要因素是通畅率、感染易感性和动脉瘤形成。
在274例手术中，将羊胶原蛋白假体植入股腘或小腿区域。
3年后，膝上旁路的通畅率在血管周围良好时为61.9%，在血管周围不佳时为44%。如果假体延伸至膝下，通畅率在血管周围良好时为55.4%，在血管周围不利时为35.3%。股小腿旁路2年后的通畅率为28.7%。感染率为0%，3例患者（1.1%）发生动脉瘤。
鉴于这种低感染率和极低的动脉瘤风险，长期结果表明，在没有合适静脉可用时，可推荐使用羊胶原蛋白假体。
