Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada.
Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
Dermatol Surg. 2020 Jun;46(6):757-762. doi: 10.1097/DSS.0000000000002145.
Patients are often concerned about the cosmetic appearance of scars following Mohs micrographic surgery (MMS), including residual erythema. However, few studies have compared the cosmetic outcomes between different suturing techniques.
To compare the erythema intensity (EI) associated with interrupted sutures (IS) and continuous sutures (CS), and the degree of its reduction over time.
Mohs micrographic surgery patients were randomized to have half of their defect repaired with IS and the other half with CS. Postoperatively, subjects were assessed at 1 week, 2 months, and 6 months and close-up photographs of their scars were taken. Computer-assisted image analysis was utilized to quantify the EI in each half-scar.
The average EI of IS was greater than that of CS by 9.3% at 1 week (p < .001) and 7.2% at 2 months (p < .021) but comparable at 6 months. These differences were clinically detectable, but EI differences resolved by 6 months in most cases. At 6 months, EI regressed by 33.5% in IS and 26.3% in CS.
Continuous sutures are associated with less erythema during early scar maturation but are comparable to IS at 6 months. These results may guide the choice of suturing technique to improve early cosmetic outcomes and overall patient satisfaction.
患者通常关心 Mohs 显微外科手术（MMS）后疤痕的美容外观，包括残留红斑。然而，很少有研究比较过不同缝合技术的美容效果。
比较间断缝合（IS）和连续缝合（CS）相关的红斑强度（EI），以及其随时间的降低程度。
将 MMS 患者随机分为两组，每组一半的缺损采用 IS 修复，另一半采用 CS 修复。术后 1 周、2 个月和 6 个月对患者进行评估，并拍摄其疤痕的特写照片。利用计算机辅助图像分析对半疤痕的 EI 进行定量评估。
IS 的平均 EI 在术后 1 周时比 CS 高 9.3%（p <.001），在术后 2 个月时高 7.2%（p <.021），但在术后 6 个月时两者相当。这些差异具有临床可检测性，但在大多数情况下，6 个月时 EI 差异已得到解决。在术后 6 个月时，IS 的 EI 消退了 33.5%，CS 的 EI 消退了 26.3%。
连续缝合在早期疤痕成熟过程中红斑较轻，但在 6 个月时与 IS 相当。这些结果可能指导缝合技术的选择，以改善早期美容效果和整体患者满意度。
