Response to letter to the editor of “posterior tibial plateau impaction fractures are not associated with increased knee instability: a quantitative pivot shift analysis”

Excerpt

We would like to thank Krause et al. [8] for reading our work and commenting on our study [5]. The main purpose of our study [5] was to evaluate rotatory knee instability in patients with posterolateral tibial plateau impaction fractures, ones that are frequently seen in patients with ACL injuries, utilizing objective, quantifiable data. We focused on impaction fractures caused from the pivot shift phenomenon [5], and not large posterior tibial plateau fractures caused by trauma or high-speed collisions [4], as these are most commonly seen at the time of ACL injuries in the general population. Due to this, the new classifications including the 10-segment, revisited Schatzker or updated 3-column classifications are not applicable to our study [7, 9, 10, 12]. Other classifications that have been reported for posterolateral tibial plateau impaction fractures have not been validated nor extensively used nor reported in the literature, and therefore we chose to classify the fractures in a simple manner that encompasses the most commonly seen posterolateral tibial plateau impaction fractures [1, 2]. …