The augmentation-reduction principle is becoming pervasive in nasal surgery. Rhinoplasty surgeons have discovered that nasal skin does not consistently contract. Therefore, nasal augmentation is an increasingly accepted technique, and grafts are required. Autogenous cartilage is the grafting material of choice. There are drawbacks to autogenous material, especially in secondary rhinoplasty patients who are often graft-depleted. Cartilage grafts may cause unsightly irregularities over time. Therefore, an interest in alternative soft tissue substitutes has developed. AlloDerm is freeze-dried acellular cadaver dermis. AlloDerm acts as a filler to expand portions of the nasal skin envelope to balance the overresected nose and adhere to the augmentation-reduction principle. AlloDerm facilitates touch-ups, especially in the author's own personal patients. It is soft, thin, and pliable and can be placed under very thin skin. AlloDerm obviates the necessity for graft harvest. It is safe in that it can eliminate the risk of donor-site problems for dorsal onlays such as cranial bone or rib grafts. It is natural and acts as an excellent camouflage graft when used as padding over a cartilage graft. It is incorporated into the surrounding tissue and does not develop unsightly irregularities over time. Extrusion is rare. It does not shift over time. It is especially useful in donor-site-depleted patients. Overcorrection is absolutely necessary because a portion of the implanted AlloDerm is always absorbed. Resorption is most common over the bony dorsum with about 20 to 30% of the graft absorbing. Resorption is disappointing for the patient and frustrating for the surgeon. Absorption does not seem to relate to the number of layers used. No graft absorption has been noted after 1 year. Therefore, it is safe to assume that the patient has a stable result from the AlloDerm graft after 1 year, and no further change should be anticipated. It is easy to use. The advantages and caveats should be kept in mind when evaluating a patient for a dorsal graft.

译文

鼻外科手术中增减原则越来越普遍。隆鼻外科医生发现鼻皮肤不会持续收缩。因此,鼻增强是一种越来越被接受的技术,并且需要移植。自体软骨是首选的移植材料。自体材料有缺点,尤其是在经常移植物枯竭的二次鼻整形术患者中。随着时间的推移,软骨移植物可能会导致难看的不规则。因此,人们对替代软组织替代品产生了兴趣。AlloDerm是冷冻干燥的无细胞尸体真皮。AlloDerm充当填充物,以扩大鼻腔皮肤包膜的一部分,以平衡过度切除的鼻子并坚持增强减少原则。AlloDerm促进了修饰,尤其是在作者自己的个人患者中。它柔软,薄,柔韧,可以放在非常薄的皮肤下。异种动物消除了嫁接收获的必要性。它是安全的,因为它可以消除诸如颅骨或肋骨移植物等背侧的供体部位问题的风险。它是自然的,当用作软骨移植物的衬垫时,它是一种出色的伪装移植物。它被整合到周围的组织中,并且不会随着时间的推移而发展出难看的不规则性。挤压很少见。它不会随着时间的推移而变化。它在供体部位耗尽的患者中特别有用。过度校正是绝对必要的,因为植入的同种异体的一部分总是被吸收的。在骨背上最常见的是吸收约20至30% 的移植物。吸收对患者来说是令人失望的,对外科医生来说是令人沮丧的。吸收似乎与所使用的层数无关。1年后未发现移植物吸收。因此,可以安全地假设患者在1年后从同种异体移植物获得稳定的结果,并且不应预期进一步的变化。它很容易使用。在评估患者的背侧移植物时,应牢记其优点和注意事项。

+1
+2
100研值 100研值 ¥99课程
检索文献一次
下载文献一次

去下载>

成功解锁2个技能,为你点赞

《SCI写作十大必备语法》
解决你的SCI语法难题!

技能熟练度+1

视频课《玩转文献检索》
让你成为检索达人!

恭喜完成新手挑战

手机微信扫一扫,添加好友领取

免费领《Endnote文献管理工具+教程》

微信扫码, 免费领取

手机登录

获取验证码
登录