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探讨兔股动脉裂隙宽度（GW）与实际缺损长度（ADL）二者的关系．方法：游离组：12只兔24条股动脉，随机平均分为3组，分别将股动脉游离15．0，25．0，35．0mm后锐性横断，测量表观游离长度（ApIL），游离长度增大值（IIL）及GW的变化，并计算伸长率λ，缺损组：9只兔18条股动脉．实际游离长度（AcIL）均为35．0mm，随机平均分为3组，分别切除生理状态下的长度ADL5．0，15．0，25．0mm．测量ApIL，IIL及GW的变化．结果：AcIL在35．0mm范围内，单纯横断股动脉，IIL及λ不受AcIL的影响（P＞0．05），GW随AcIL的增长呈线性增长：△GW=△AcIL·（1－1／λ）；AcIL一定时，ADL对IIL及ApIL无影响（P＞0．05），GW随ADL的增大呈线性增长：△GW＝△ADL·1／λ．结论：兔股动脉在AcIL35．0mm范围内，ADL，ApIL，AcIL，IIL，GW之间存在关系：ADL＝AcIL－（AcIL＋IIL－GW）·λ或ADL＝（ApIL－IIL）－（ApIL－GW）·λ．
To investigate the relationship between rabbit’s femoral artery gap width (GW) and actual defect length (ADL). Methods: In the free group, 24 femoral arteries of 12 rabbits were randomly divided into 3 groups. The femoral arteries were transected sharply at 15.0, 25.0 and 35.0 mm respectively. Apil, Free length increase (IIL) and GW changes, and calculate the elongation λ, defect group: 9 rabbits 18 femoral artery. The actual free length (AcIL) were 35.0mm, were randomly divided into three groups, respectively, the length of excision physiological status ADL5.0,15.0,25.0mm. Measure ApIL, IIL and GW changes. Results: In the range of 35.0mm, AcIL transected femoral artery, IIL and λ were not affected by AcIL (P> 0.05), GW increased linearly with AcIL: △ GW = △ AcIL · (1-1 / Λ). When AcIL was constant, ADL had no effect on IIL and ApIL (P> 0.05). GW increased linearly with increasing ADL: △ GW = △ ADL · 1 / λ. CONCLUSIONS: There is a relationship between ADL, ApIL, AcIL, IIL and GW in the rabbit femoral artery within the AcIL of 35.0mm: ADL = AcIL- (AcIL + IIL- GW) · λ or ADL = (ApIL- IIL) ) · Λ.