Wijenayake Lahann, Conroy Sophie, Turner Douglas, Thorning Sarah, Glasziou Paul
Department of Orthopaedics, Tweed Heads Hospital, Tweed Heads, New South Wales, Australia.
Department of Evidenced-Based Medicine, Bond University, Gold Coast, Queensland, Australia.
ANZ J Surg. 2015 Jun;85(6):456-60. doi: 10.1111/ans.12902. Epub 2014 Nov 3.
The volume of orthopaedic literature is increasing exponentially, becoming more widely scattered among journals. The rate of increase in orthopaedics is greater than other specialties. We aimed to identify the number of different journals an orthopaedic surgeon would need to read to stay up-to-date with current evidence.
We searched PubMed for all orthopaedic-related systematic reviews (SR) and randomized controlled trials (RCT) published in 2011 using MESH (Medical Subject Headings) terms. The search was based on the Australian Orthopaedic Association syllabus of March 2011. The results of the search were exported to EndNote, then Microsoft Excel. We then calculated the least number of journals needed to read 25%, 50% and 100% of the articles. This was done separately for SRs and RCTs.
We found 1400 orthopaedic RCTs spread over 392 journals. Ten journals contained 25% of the articles, 36 journals contained 50% and 114 journals contained 75%. Three hundred journals contained three or fewer RCTs. We found 354 orthopaedic-relevant SRs spread over 152 journals. Six journals contained 25% of the articles, 23 journals contained 50% and 63 journals contained 75%. Ninety-three journals contained only one SR.
Our results demonstrate the vast scatter of orthopaedic research. Four orthopaedic RCTs are published every day. To read even 25% of the new RCTs and SRs published in orthopaedics, a surgeon would require a subscription to 13 different journals monthly, a costly and time-consuming endeavour.
骨科文献数量呈指数级增长，在各类期刊中分布愈发广泛。骨科文献的增长速度高于其他专科。我们旨在确定骨科医生为紧跟当前证据需阅读的不同期刊数量。
我们使用医学主题词（MESH）在PubMed中检索了2011年发表的所有骨科相关系统评价（SR）和随机对照试验（RCT）。检索基于2011年3月澳大利亚骨科协会教学大纲。检索结果导出至EndNote，然后再导入Microsoft Excel。接着，我们计算了阅读25%、50%和100%的文章所需的最少期刊数量。系统评价和随机对照试验分别进行计算。
我们发现1400项骨科随机对照试验分布在392种期刊上。10种期刊包含了25%的文章，36种期刊包含了50%，114种期刊包含了75%。300种期刊包含的随机对照试验数量为3项或更少。我们发现354篇骨科相关系统评价分布在152种期刊上。6种期刊包含了25%的文章，23种期刊包含了50%，63种期刊包含了75%。93种期刊仅包含1篇系统评价。
我们的结果表明骨科研究分布极为分散。每天有4项骨科随机对照试验发表。仅阅读骨科领域新发表的随机对照试验和系统评价中的25%，外科医生每月就需要订阅13种不同的期刊，这既昂贵又耗时。
