Imaging Case of the Week 350 Answer Posted on March 3, 2019 by Prathibha The frontal knee x-ray shows a small elliptical fragment of bone near the lateral tibial plateau. This is Segond fracture, highly suggestive of associated ACL (anterior cruciate ligament) tear. An MRI scan of the knee confirmed ACL rupture. Share this:PrintEmailTwitterFacebookMoreRedditLinkedInPinterest