[猪扩张带蒂筋膜皮瓣张力与血流的关系]
[The relationship of tension and blood flow of the expanded pedicled fasciocutaneous flap in pig].
作者信息
Zhang Zhi-Hong, Ouyang Zhong-Shi, Wang Hai-Bo, Wang Jia-Qi
机构信息
Department of Plastic Surgery and Laser Medcine, Bejing Anzhen Hospital, Capital University of Medical Sciences, Beijing 100029, China.
出版信息
Zhonghua Zheng Xing Wai Ke Za Zhi. 2010 Jul;26(4):286-9.
OBJECTIVE
To evaluate the effect of wound closure tension on the blood flow of the expanded pedicled fasciocutaneous flap, so as to find the best tension for the blood supply of the flap.
METHODS
8 piglets, aged 9-12 months, were used. On each side of pig back, a cephalic based expanded fasciocutaneous flap was designed. The size of the flaps was 5 cm x 20 cm. In the control group, the flaps were not elevated (0 g tension). In the experimental group, the flaps were treated at the end with the tension of 100, 200, 300, 400, 500, 600, 700, 800, and 900 g after elevation. The blood oxygen saturation (StO2) of the flaps was measured under different wound closure tension.
RESULTS
The flap StO2 raised along the increase of tension until the tension reached 200-300 g. Then the flap StO2 decreased when the tension continued to increase above 200-300 g.
CONCLUSIONS
The tension of 200-300 g is good for the blood flow of expanded pedicled fasciocutaneous flap. So the flap flexibility can be best used and the complication can be avoided.
目的
评估伤口闭合张力对扩张带蒂筋膜皮瓣血流的影响，以寻找皮瓣血供的最佳张力。
方法
选用8只9至12月龄仔猪。在猪背部两侧设计以头部为蒂的扩张筋膜皮瓣。皮瓣大小为5 cm×20 cm。对照组皮瓣不掀起（0 g张力）。实验组皮瓣掀起后分别以100、200、300、400、500、600、700、800和900 g的张力处理。在不同伤口闭合张力下测量皮瓣的血氧饱和度（StO2）。
结果
皮瓣StO2随张力增加而升高，直至张力达到200 - 300 g。当张力继续增加超过200 - 300 g时，皮瓣StO2下降。
结论
200 - 300 g的张力有利于扩张带蒂筋膜皮瓣的血流。这样可以最佳利用皮瓣的柔韧性并避免并发症。
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