The running percutaneous suturing technique is a nice technique to help you speed up lengthy wound closures. Simple interrupted suturing is still a preferred technique when you want the most meticulous repair, but when dealing with less cosmetic areas, I like this technique as it is involves less knot tying and gets the job done a lot faster without sacrificing much in terms of wound appearance.
Advantages of the running percutaneous suturing technique include more equal distribution of tension across the entire wound, allowing for tissue expansion due to edema and great tissue eversion.
A variation of the running percutaneous suturing technique involves “locking” each loop of suture as you go. This is accomplished by passing the needle through the loop of sutures. This added step will allow each loop of suture to act more independently in holding tension (almost like, but not quite as good as, a simple interrupted suture). This is most useful for a long laceration that is mostly linear but may have a little curve to it. Be advised, with locking the equal tension distribution which was an advantage of the basic running technique is lost, so you have a higher risk of tissue strangulation.