Evaluation of a new tension relief system for securing wound closure: a single-centre, Chinese cohort study

Background Wounds that have been closed under excessive tension, and skin defects that cannot be closed primarily, pose a daily challenge for the reconstructive surgeon. Objective To evaluate a new tension relief system (TRS) device for skin stretching and secure wound closure. Methods From September 2013 to March 2014, a consecutive series of 41 Chinese patients with 43 wounds were enrolled for application of 50 cycles of TRS therapy. TRS was used for two main clinical applications: closure of a variety of surgical/traumatic wounds; and securing wound closure after high-tension suture closure. Basic information and details regarding this therapy and its complications were recorded. Follow-up visits were conducted three to six months after wound closure. Results Mean residual wound width decreased approximately 20% every two days during cycles of TRS therapy. Infection was the most common complication (five cases). Other complications included dehiscence (two cases) and pressure ulcer (one case). At the six-month follow-up visit, (21 wounds in 20 patients), both the extent of healing and the scar were acceptable. Discussion There are no absolute contraindications to TRS therapy. The authors have formulated instructions for the prevention and treatment of the most common complications. Conclusions The results demonstrate that TRS therapy is a simple, effective method for primary closure of difficult wounds, and large skin and soft-tissue defects. Larger randomized studies are required to further evaluate of the effectiveness, indications, complications and cost effectiveness of this innovative TRS therapy.