Supplementary Material for: A New Concept for Central Wedge Resection in Labiaplasty

Objective: The aim of the study was to develop a new concept for central wedge resection to improve surgical results. Currently, the most common postoperative complications of the regular central wedge (RV) resection technique are wound dehiscence and scar contracture. Methods: A case-control study was applied to randomly divide 119 patients with labia minora hypertrophy deformities into 2 groups: new central wedge (NV) (n = 57) and RV (n = 62). All patients underwent the corresponding corrective surgery to repair the deformity. During the NV procedure, we changed the direction of the scalpel to form 2 inclined sections and sutured these sections together to achieve nonparallel closure lines. The patients in the 2 groups were followed up at 1 and 6 months postoperatively. We described the details of this method and evaluated the treatment outcomes of the 2 groups. Results: Patient age, labia minora width, and procedure time were not significantly different between the 2 groups (p > 0.05). However, the visual analog scale (VAS) scores in the 2 groups were significantly different (p < 0.05). Two patients in the NV group were somewhat dissatisfied because of lymphoedema and asymmetry; 6 patients in the RV group expressed dissatisfaction with scarring, healing complications, and asymmetry. A minor corrective operation was performed for asymmetry, and the dehiscence healed spontaneously. The patient with edema is still being followed up. Conclusion: The surgical method we introduced was indicated to be a simple and effective procedure that avoided wound dehiscence and scar contracture, which are common with the regular approach.

研究目的：本研究旨在开发一种新型中央楔形切除术理念，以改善手术疗效。目前，常规中央楔形（regular central wedge, RV）切除术最常见的术后并发症为伤口裂开与瘢痕挛缩。研究方法：本研究采用病例对照研究设计，将119例小阴唇肥大畸形患者随机分为两组：新型中央楔形切除术组（NV组，n=57）与常规中央楔形切除术组（RV组，n=62）。两组患者均接受相应的畸形矫正手术。在NV组手术操作中，研究者调整手术刀切割方向，形成两个倾斜切面，并将切面缝合以实现非平行闭合线。两组患者均于术后1个月及6个月进行随访。本研究详述了该手术方法，并对两组患者的治疗效果进行了评估。研究结果：两组患者的年龄、小阴唇宽度及手术时长均无显著差异（p>0.05）。但两组的视觉模拟评分（visual analog scale, VAS）得分存在显著差异（p<0.05）。NV组有2例患者因淋巴水肿与不对称情况出现一定程度的不满；RV组有6例患者对瘢痕形成、愈合并发症及不对称情况表示不满。针对不对称情况实施了小幅矫正手术，伤口裂开可自行愈合。出现水肿的患者仍在随访中。研究结论：本研究提出的手术方法操作简便且疗效确切，可避免常规术式常见的伤口裂开与瘢痕挛缩并发症。