Palao R, Gómez P, Huguet P
Plastic and Reconstructive Surgery Service, Vall d'Hebron Hospital, Barcelona, Spain.
Br J Plast Surg. 2003 Apr;56(3):252-9. doi: 10.1016/s0007-1226(03)00101-2.
Reconstruction of the burned breast poses several clinical challenges, since scarring can adversely affect the development, contour and positioning of the breast as well as the cosmetic appearance of the skin surface. Conventional management entails contracture release and thick split-thickness skin grafting. We investigated an alternative approach employing dermal regeneration template (Integra) for breast reconstruction in 12 consecutive patients who had suffered anterior chest wall burns in childhood. Integra is a bilayer material consisting of a collagen and chondroitin-6-sulfate dermal regeneration template and a temporary silicone epidermal layer. Portions of the scar contracture preventing the breast from assuming the desired shape and position were excised. Unmeshed Integra sheets were applied to the wound bed immediately following excision. Sufficient vascularization of the forming neodermis occurred within 28 days on average to enable removal of the silicone layer and placement of unmeshed 0.005in. epidermal autografts. Upon histological examination one month postoperatively, naturally-formed collagen fibres were observed in the dermal regeneration template. By one year, host collagen had typically completely replaced the Integra matrix, and elastic fibres were evident throughout the neodermis. Durable improvements in breast contour and shape were attained in all patients, and clinically-relevant recontracture of the graft site did not occur within the follow-up period. A statistically significant improvement of 6.0 (95% CI, 5.0-6.5) in Vancouver Scar Scale score was demonstrated at one year. A very high level of satisfaction in the outcome of reconstruction was expressed by 92% of the patients. Grafting with Integra provides an effective and well-tolerated alter-native to thick split-thickness grafting for breast reconstruction. Chief advantages are the availability of a biocompatible material in unlimited quantity that can be tailored to the particular wound site and the avoidance of a deep donor site wound with attendant potential for infection, scarring and permanent pigment changes.
烧伤乳房的重建面临着诸多临床挑战,因为瘢痕形成会对乳房的发育、外形、位置以及皮肤表面的美观产生不利影响。传统的治疗方法包括挛缩松解和厚中厚皮片移植。我们研究了一种替代方法,即采用真皮再生模板(Integra)对12例童年时前胸壁烧伤的患者进行乳房重建。Integra是一种双层材料,由胶原蛋白和硫酸软骨素-6-硫酸盐真皮再生模板以及临时的硅胶表皮层组成。切除妨碍乳房呈现理想形状和位置的部分瘢痕挛缩组织。切除后立即将未网状化的Integra片材应用于创面。平均在28天内形成的新真皮实现了充分的血管化,从而能够去除硅胶层并移植未网状化的0.005英寸自体表皮。术后1个月进行组织学检查时,在真皮再生模板中观察到自然形成的胶原纤维。到1年时,宿主胶原蛋白通常已完全取代Integra基质,并且在整个新真皮中可见弹性纤维。所有患者的乳房外形和形状都得到了持久改善,并且在随访期内移植部位未出现临床相关的再次挛缩。1年时温哥华瘢痕量表评分有统计学意义的显著改善,改善值为6.0(95%可信区间,5.0 - 6.5)。92%的患者对重建效果表示非常满意。与厚中厚皮片移植相比,使用Integra进行移植为乳房重建提供了一种有效且耐受性良好的替代方法。主要优点是可获得无限量的生物相容性材料,可根据特定创面进行定制,并且避免了深部供皮区创面以及随之而来的感染、瘢痕形成和永久性色素改变的潜在风险。