Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu, China.
Dermatol Ther. 2021 Mar;34(2):e14797. doi: 10.1111/dth.14797. Epub 2021 Feb 4.
Wound tension plays a key role in the process of wound healing and scar formation. Tension offloading devices have been reported to reduce postsurgical scar formation. This study aims to determine whether the application of a tension offloading device preoperatively would result in superior attenuation of scar genesis in comparison to traditional methods. Randomized, controlled trials were performed on 12 patients, 4 patients were treated both preoperatively and postoperatively, while the other 4 were treated only postoperatively. The remaining 4 patients did not receive any sort of intervention. The overall performance was analyzed over 6 months period. The skin elasticity coefficient improved significantly with the application of a tension-offloading device. Compared with control group, patients who received treatment via the device displayed a better result in scar width and regression of color. It was also shown that the use of a device in the group with twin pre-op and post-op intervention resulted in a reduction of the wound healing period in comparison to the post-op group. Application of a tension-offloading device preoperatively can reduce tensile forces acting on the incision, thereby resulting in faster wound healing and enhanced efficacy on postsurgical reapplication. The effectiveness of the device in preventing hypertrophic scar is likely to be improved by long-term application after operation.
伤口张力在伤口愈合和瘢痕形成过程中起着关键作用。有报道称，张力释放装置可减少术后瘢痕形成。本研究旨在确定术前应用张力释放装置是否会比传统方法更能有效抑制瘢痕生成。对 12 例患者进行了随机对照试验，4 例患者同时接受术前和术后治疗，另外 4 例仅接受术后治疗，其余 4 例未接受任何干预。在 6 个月的时间内对整体表现进行了分析。应用张力释放装置后皮肤弹性系数显著提高。与对照组相比，使用该装置治疗的患者在瘢痕宽度和颜色消退方面表现出更好的效果。此外，与术后组相比，接受双术前和术后干预的组中使用该装置还可减少伤口愈合期。术前应用张力释放装置可减少作用于切口的张力，从而加速伤口愈合，并增强术后再应用的效果。该装置在预防增生性瘢痕方面的有效性可能会通过术后长期应用得到提高。
