观察实验侧足趾末梢毛细血管充盈情况，记录缺血和再灌注时间。
Observed the capillary filling of hindlimb far-end, recorded the time of ischemia and reperfusion.
球结膜充血(急性红眼)：眼前节急性反应诱发的球结膜血管充盈。
Hyperemia bulbar (acute red eye) : Engorgement of conjunctival blood vessels in association with acute anterior eye reaction.
钛轮钉组的优点是，不用缝合血管，可减少血管损伤，未见并发症，血管充盈良好。
In titanium nail group without suturing of blood vessel, damage of blood vessel can be reduced, no complication appears and blood vessel is filled well.
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