Lencastre André, Richert Bertrand
Hospital de Cascais and Hospital da Luz - Lisboa, Lisbon, Portugal.
Brugmann and Saint Pierre University Hospitals, Université Libre de Brussels, Brussels, Belgium.
Skin Appendage Disord. 2024 Aug;10(4):247-253. doi: 10.1159/000537907. Epub 2024 Mar 25.
A retronychia classification system is overdue considering the most recent publications. Using the keyword "retronychia", publications with a narrative literature review were selected from PubMed/MEDLINE, EMBASE and Google Scholar, adding a few select papers.
This article proposes a theoretical pathophysiological basis for retronychia. Several factors alter the clinical picture of retronychia: length and periodicity of backward displacement, duration of disease, intensity of paronychia, presence and type of nail stacking (polymeronychia), and remodeling of the nail apparatus (elevation of the proximal nail, nail bed shortening, retroversion of the distal nail fold and acquired malalignment).
With these factors in mind, we propose a new classification system for retronychia: A standing for acute, O for ongoing, and C for chronic. We believe this easy system may increase the diagnostic acuity for the disease and its understanding.
鉴于最近的出版物，甲逆生分类系统亟待更新。使用关键词“甲逆生”，从PubMed/MEDLINE、EMBASE和谷歌学术中筛选出带有叙述性文献综述的出版物，并补充了一些精选论文。
本文提出了甲逆生的理论病理生理学基础。有几个因素会改变甲逆生的临床表现：向后移位的长度和周期性、病程、甲沟炎的严重程度、甲堆叠（多甲症）的存在及类型，以及甲器的重塑（近端甲隆起、甲床缩短、远端甲皱襞后倾和后天性排列不齐）。
考虑到这些因素，我们提出了一种新的甲逆生分类系统：A代表急性，O代表进行性，C代表慢性。我们相信这个简单的系统可能会提高对该疾病的诊断敏锐度及其认识。
