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目的探讨猪后肢高速三角破片伤致肺损伤的伤情特点。方法长白猪12只,体重30～40kg。用初速为(773.1±12.4)m/s的0.37g三角破片弹致伤,瞄准猪右后肢外侧臀股二头肌中心处射击。观察记录动物伤道情况,伤后48h解剖观察肺脏大体及光镜改变。结果肢体高速破片伤后,有8只(66.7%)动物肺出现不同程度的损伤,主要表现为片状或点状出血。出血较重的部位伴有肺水肿、局灶性肺不张,部分可见气管内血性泡沫样液体。光镜下见肺间质出血,肺泡破裂融合,白细胞浸润。总体伤情为轻、中度肺损伤,心、肝、脾、肾、肠等未见明显损伤。结论肺是猪后肢高速三角破片伤时远达效应的主要靶器官,提示治疗原发伤的同时,应注意保护肺功能。
Objective To investigate the injury characteristics of lung injury caused by high-speed triangle rupture of pig hind limbs. Methods Landrace 12, weight 30 ~ 40kg. Injured by a 0.37 g triangular fragment at an initial velocity of (773.1 ± 12.4) m / s, aiming at the center of the biceps femoris in the right hind limb of the pig. Observed and recorded animal injuries, 48h after injury anatomical observation of lung gross and light microscopy changes. Results After the high-speed limb injury, 8 (66.7%) animals showed different degrees of lung injury, mainly manifested as flaky or punctate bleeding. Hemorrhagic sites associated with pulmonary edema, focal atelectasis, some visible tracheal bloody foam-like liquid. Light microscope, see interstitial lung bleeding, alveolar rupture fusion, leukocyte infiltration. The overall injury was mild, moderate lung injury, heart, liver, spleen, kidney, intestine and other obvious damage. Conclusions Lung is the main target organ of up-reaching effect in high-speed triangular rupture of hind limbs of pigs. It is suggested that pulmonary function should be protected while treating primary injury.