皮肤伸展术伸展皮肤的来源及创面闭合的实验研究

EXPERIMENTAL STUDY OF THE ARCHITECTURE OF SKIN FOLLOWING TENSION TRACTION AND WOUND CLOSURE

为了研究皮肤伸展术伸展皮肤的来源及伸展力作用对创面闭合的影响，采用自制的皮肤应力检测系统，作用于猪胸背部标出的７ｃｍ×３．５ｃｍ创面两侧，在伸展区画水平线与垂直线，以１ｃｍ等距点标记，在模拟创面两侧加力至对合，测等距点的变化范围及大小。并选取后肢对称部位形成７ｃｍ×１０ｃｍ创面，实验组首次清创后即采用伸展力作用于创缘。结果表明，创面两侧５倍～７倍于创面长边的部位，皮肤等距点仍增大，伸长皮肤占创面长边的６１％～８９％；伸展力作用的创面５天后即可缝合，对照组仅缩小２４％～２８％。认为，伸展术可动员周围组织，有利于缩小创面及早期闭合创面。

The experiment performed on domestic pig, was designed to investigate the architecture of the stretching skin and the effect of tension traction on the wound closure. An 7 cm×3.5 cm was drawn at a standard position. Drawing horizontal and vertical lines on the traction area, points of 1 cm apart were tattooed on the lines. A traction force measuring device was used to draw the wound edges together. Measurements of the distances between the points were made. An 7 cm×10cm wound was made on identical sites of each hind leg. In the experiment the traction tension was applied on the edges of wound immediately after the wound debridement. The results showed the stretched distance in the two areas was 5～7 times the width of the wound. The gain of skin from traction was 61～89 percent in the width of the wound. The wounds from traction five days could be closed 5 days after traction. It was concluded that the skin which could be used for traction was abundant. Wound closure with the skin traction technique had many advantages, such as rapid decreasing the size of wound and early closing of wound. 