Komorowska-Timek Ewa, Gabriel Allen, Bennett Della C, Miles Duncan, Garberoglio Carlos, Cheng Chester, Gupta Subhas
Division of Plastic and Reconstructive Surgery, Department of Surgery, Loma Linda University, Loma Linda, Calif 92354, USA.
Plast Reconstr Surg. 2005 Apr;115(4):1010-7. doi: 10.1097/01.prs.0000154210.60284.c6.
Artificial dermis has been used successfully for coverage of full-thickness wounds with a well-vascularized surgical bed. However, the use of artificial dermis in the reconstruction of partial- and full-thickness scalp defects has not been well documented.
Seven patients (six men and one woman; mean age, 70 +/- 14 years) with partial-thickness (three patients) and full-thickness (four patients) soft-tissue defects of the scalp (mean defect area, 97 +/- 58 cm) following resection of recurrent malignant tumors and/or previous failed reconstructions underwent staged scalp reconstruction with a bilaminate skin substitute (Integra). After adequate debridement of scalp wounds, including burring the outer table of the calvaria down to bleeding bone for full-thickness defects, Integra was scored and applied unexpanded. A split-thickness skin graft (0.011 +/- 0.0 inch in thickness) was placed on the operative site at postoperative day 36 +/- 15 after removal of the silicone layer of the artificial dermis. Two patients required repeated applications of artificial dermis to compensate for contour deficits before skin grafting.
Clinically, all reconstructed areas showed well-vascularized neodermis before skin grafting. There was a 100 percent take of the skin grafts, with no infections or other complications noted. All reconstructive procedures were performed in less than 3 hours of combined operative time, with the last stage performed on an outpatient basis.
Artificial dermis can be used successfully for reconstruction of complex scalp defects following oncologic resection, offering minimal donor-site morbidity, expedient operative time, and when needed, temporary quality closure until final pathologic results are known. Integra skin may offer another option for definitive management of extensive full-thickness scalp defects.
人工真皮已成功用于覆盖具有良好血管化手术床的全层伤口。然而,人工真皮在部分厚度和全厚度头皮缺损重建中的应用尚未得到充分记录。
7例患者(6例男性,1例女性;平均年龄70±14岁),因复发性恶性肿瘤切除和/或先前重建失败后出现头皮部分厚度(3例患者)和全厚度(4例患者)软组织缺损(平均缺损面积97±58平方厘米),接受了双层皮肤替代物(Integra)分期头皮重建。在对头皮伤口进行充分清创后,包括将颅骨外板打磨至出血骨面以处理全层缺损,将Integra进行划痕处理并在未扩张状态下应用。在术后36±15天去除人工真皮的硅胶层后,将厚度为0.011±0.0英寸的中厚皮片置于手术部位。2例患者在植皮前需要重复应用人工真皮以弥补轮廓缺陷。
临床上,所有重建区域在植皮前均显示出血管化良好的新生真皮。皮片成活率为100%,未观察到感染或其他并发症。所有重建手术的总手术时间均在3小时以内,最后阶段在门诊进行。
人工真皮可成功用于肿瘤切除后复杂头皮缺损的重建,供区并发症少,手术时间短,并且在需要时可提供临时的优质闭合,直至获得最终病理结果。Integra皮肤可能为广泛的全层头皮缺损的确定性治疗提供另一种选择。