Kambhampati Srinivas B S, Vaishya Raju
Sri Dhaatri Orthopaedic, Maternity & Gynaecology Center, Vijayawada, Andhra Pradesh, India.
Indian Journal of Orthopaedics, New Delhi, India.
J Clin Orthop Trauma. 2020 May;11(Suppl 3):S354-S361. doi: 10.1016/j.jcot.2019.10.007. Epub 2019 Oct 17.
Posterior Cruciate Ligament (PCL) is one of the key ligaments of the knee. PubMed data has not been previously analyzed on this topic. This study aims to summarize data of 40 years from 1979 to 2018 in PubMed on this topic.
A search was conducted in PubMed on PCL for the last 40 years using a search strategy, and the output was analyzed for further details. Data was also sought from Scopus concerning top universities and countries publishing on PCL as this information was not extractable from PubMed. VOS Viewer was used to analyzing text occurrences in authors and titles visually.
Total publications on PCL were 5087 from 1915 to 27 February 2019 when this search was done and 5025 in the last 40 years until 31 December 2018. The yearly average of publication numbers has seen a steady increase. Top journal and author on PCL publications were KSSTA and LaPrade RF respectively. Most papers published by a First author was by Fanelli GC. Time-based links of LaPrade RF to other authors were represented as a VOS output. The USA was the most published country, and 8 of 10 Universities which published were from the USA.
There has been a steady and significant increase in the number of articles published in PubMed since 1979. It is obvious that the topic of PCL has gained attention and importance in the recent past and has seen a steady increase over the last few years. This article summarises the increased interest and could act as a baseline for future studies.
Level IV.
后交叉韧带（PCL）是膝关节的关键韧带之一。此前尚未对PubMed数据进行过关于该主题的分析。本研究旨在总结1979年至2018年这40年间PubMed上关于该主题的数据。
使用搜索策略在PubMed中对过去40年的PCL进行搜索，并对输出结果进行进一步详细分析。还从Scopus中查找有关发表PCL相关文章的顶尖大学和国家的数据，因为这些信息无法从PubMed中提取。使用VOS Viewer直观地分析作者和标题中的文本出现情况。
截至2019年2月27日完成此次搜索时，1915年至该时间关于PCL的总出版物为5087篇，截至2018年12月31日的过去40年中有5025篇。出版物数量的年平均值呈稳步增长。PCL出版物的顶级期刊和作者分别是《膝关节外科技术与运动创伤杂志》（KSSTA）和拉普拉德（LaPrade RF）。第一作者发表论文最多的是法内利（Fanelli GC）。拉普拉德（LaPrade RF）与其他作者的基于时间的联系以VOS输出形式呈现。美国是发表文章最多的国家，发表文章的10所大学中有8所来自美国。
自1979年以来，PubMed上发表的文章数量稳步且显著增加。显然，PCL主题在最近受到了关注并变得重要，且在过去几年中呈稳步增长。本文总结了这种日益增长的兴趣，并可为未来研究提供基线。
四级。
