In this feature, AAOS Now publishes a series of images, challenging readers to diagnose the condition depicted. The images for this month’s challenge were submitted by Timothy Bert, MD, a resident member at the University of Tennessee–Campbell Clinic. The images are of a 58-year-old male with left knee pain. What’s your diagnosis?
Do you have a challenging case you’d like to submit for publication? E-mail a short case description and any accompanying images to firstname.lastname@example.org
Answer: Osteonecrosis of medial femoral condyle