(1) It is necessary to ensure that the sutured wound or wound is well matched. Suture should be carried out in layers, according to the anatomical level of the tissue, so that the tissue level is tight, not involved in or sewn into other tissues, leaving no residual cavity to prevent hydrops, hematocele and infection. The distance between the wound edge and the needle distance of the suture must be the same, so that it looks beautiful. More importantly, the stress is consistent with the shared tension, and the suture is tight and does not leak.
(2) Pay attention to the tension at the joint. The tightness of ligation and suture should be based on the tight connection of incision edge, and should not be too tight. In other words, wound healing is not completely proportional to the tightness. Too tight and too loose will lead to poor healing. When the wound is in a state of tension, tension-reducing suture should be performed. If the wound is too big, you can consider transferring skin flap to repair or skin grafting.
(3) The choice of suture and suture needle should be appropriate. Sterile incision or lightly polluted wound can be treated with silk thread after debridement, disinfection and cleaning. Absorbable suture can be used for infected or seriously polluted wound, and corresponding non-invasive needle and thread should be used for vascular anastomosis.
There are many kinds of suture methods, but there is no unified classification method at present. According to the involution relationship of tissues, there are three types: simple suture, everted suture and everted suture. Each type is divided into two types according to whether the sewing is continuous or not: intermittent sewing and continuous sewing. According to the position relationship between suture and tissue, it can be divided into horizontal suture and vertical suture; Sometimes the above situations are combined and named. According to the shape of the seam, it can be divided into purse-string seam, semi-purse-string seam, U-shaped seam, 8-shaped seam, T-shaped seam and Y-shaped seam. There are also special-purpose sutures, such as tension-reducing suture, intradermal suture, suture hemostasis and so on.