Since initial publishing my forestplot package, dplyr and tidyverse have become evermore dominant in how we think about data and data management. I have therefore just published a 2.0 version that uses many of the awesome select & group features that make tidyverse such a compelling tool. Continue reading
A few tips for beginners on how to engage with the open source community
I have been writing code in multiple languages since 1994 and for almost a decade now I have been active within the open source community, primarily in R but I’ve also published some JavaSript/TypeScript packages. Publishing something that other people enjoy is a pure joy and the fact that some of my packages have download counts in the thousands is something that truly warms my heart.
Throughout the years I have though noticed that there is newcomers to the open source community often struggle with how to get help, which is why I decided to write this post. I’ll start out with some basics and then a little more advanced topics such as how to write an issue or a pull request. Continue reading
Easiest flowcharts eveR?
A flowchart is a type of diagram that represents a workflow or process. The building blocks are boxes and the arrows that connect them. If you have submitted any research paper the last 10 years you have almost inevitably been asked to produce a flowchart on how you generated your data. While there are excellent click-and-draw tools I have always found it to be much nicer to code my charts. In this post I will go through some of the abilities in my Gmisc package that makes this process smoother. Continue reading
News in htmlTable 2.0
The htmlTable 2.0 package was just released on CRAN! It is my most downloaded package with 160 000+ downloads/month and this update is something that I have been wanting to do for a long time. For those of you that never encountered htmlTable it is a package that takes a `matrix`/`data.frame` and outputs a nicely formatted HTML table. When I created the package there weren’t that many alternatives and knitr was this new thing that everyone was excited about, magrittr with its ubiquitous `%>%` pipe had not even entered the scene. The current update should make it easier to streamline table look, separate layout from content and use tidyverse functionality. Continue reading
Surgery for sacroiliac joint dysfunction, is this a thing?
Low back pain has a history of failed trials supporting surgery (see Brox et al. and Fairbank et al.) and I was therefore thrilled when I encountered Dengler et al.’s randomized controlled trial (RCT) on sacroiliac joint dysfunction. They showed that arthrodesis outperformed conservative management both early and up to two years after surgery. Continue reading
Long-awaited updates to htmlTable
One of the most pleasant surprises has been the popularity of my htmlTable-package with more than 100k downloads per month. This is all thanks to more popular packages relying on it and the web expanding beyond its original boundaries. As a thank you I have taken the time to update and fix some features (the 1.13 release) – enjoy! Continue reading
Collum screw – to parallel or not
One of the first surgeries young orthopaedic surgeons learn is the femoral neck fracture fixation with collum screws. A common theme is how to position the screws and as a young surgeon one often believe that everything depends on the screw position, especially if they’re parallel or not. It was therefore quite fun and liberating to read Nyholm et al’s study with the subtitle: “Minimal Effect of Implant Position on Risk of Reoperation” Continue reading
A screw finally worth writing about
I finally found something exciting to write about, the suture button/tightrope. I must admit that I’ve been “suture button curious” for a while now and seeing Andersen et al’s exciting RCT with almost 100 patients was truly interesting. The suture button outperformed the 4-cortical syndesmotic screws in all measurements, both patient reported and radiographic. The study is simply almost too good to be true. Continue reading
And I thought we were done with the mid-shaft clavicle….
So… just a few days after my previous clavicle post, Ahrens et al released their multi-center study on 300 patients randomized to surgery. They found that operated clavicles have less pain early on, but that after 9 months they perform the same. The study was excellently performed with 20 centers, adequate patient selection, random block permutation for treatment allocation, and reasonable treatment options. Continue reading
The clavicle fracture – can the madness finally come to an end?
In the early 2000s Nowak et al.  shattered the belief that mid-shaft clavicle fractures always healed fine; even after 10 years almost half of the patients had remaining symptoms*. This common injury had also by in others  (with shorter follow-ups) been hinted as problematic, and within short we were showered with fancy new implants. After ≥ 7 RCTs ,  on the subjects it seems that these new implants failed do deliver. Can we finally start questioning if surgery is the solution? Continue reading