Editorial The Posterolateral Corner

摘要

In this issue of The Journal of Knee Surgery, the challenging and complex topic of the posterolateral corner is reviewed in depth in our Special Focus section. Our guest section editor, Claude T. Moorman III, MD, director of sports medicine at Duke, has assembled several nationally prominent experts in this arena.Moorman and LaPrade provide an excellent discussion of the anatomical structures pertinent to the posterolateral corner, along with a detailed review of biomechani-cal considerations in the first of six articles in this section. The posterolateral corner and its role in preventing varus motion, anterior tibial translation, posterior tibial translation, internal tibial rotation, and external tibial rotation are well discussed and clinically correlated with physical examination findings. This article leads into the second article, Examination of Posterolateral Corner Injuries by Larsen and Toth. Their article reviews the basic physical examination findings associated with posterolateral corner injuries, and differentiates them from anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) injuries. Additionally, they describe and define the "double" and "triple" varus knee that Noyes has popularized. The third article by Vinson and Helms, focuses on "Imaging for Evaluation of Posterolateral Corner Injury"; this detailed review examines the MRI findings that can be associated with posterolateral corner injuries.