To evaluate the clinical value of the modified buried vertical mattress suture (MBVMS) in improving wound healing quality and reducing scar formation in pediatric facial trauma.

A prospective randomized controlled study was conducted, involving 90 children with linear facial trauma admitted between January 2025 and March 2025. Participants were randomly divided into a control group (n=45) and an experimental group (n=45). The control group received simple buried intradermal sutures (SBIS), while the experimental group received MBVMS. Immediate postoperative wound eversion height and complication rates were compared between the 2 groups. At 3 months postoperatively, scar quality was assessed using the Vancouver Scar Scale (VSS), scar width was measured with a digital vernier caliper, and family satisfaction was evaluated using the Visual Analog Scale (VAS).

The experimental group [(2.55±0.76)mm] showed significantly better immediate postoperative wound eversion height compared to the control group[(1.71±0.36)mm](t=6.66, P<0.01). At 3 months postoperatively, the experimental group had lower VSS scores [(3.15±1.16), (3.82±1.09), t=-2.82, P<0.01)], narrower scar width [(0.80±0.31)mm, (1.00±0.21)mm, t=-3.75, P<0.01], and higher family satisfaction VAS scores [(8.58±1.06), (7.84±0.82), t=3.67, P<0.01].

MBVMS is more effectively in maintaining wound eversion, reducing dermal tension, inhibiting postoperative scar hypertrophy in pediatric facial trauma patients, and increasing satisfaction among patients′ families.