This weekend at the Acibadem Sistina Clinical Hospital, a lecture in the field of orthopedic surgery was held by eminent surgeons Prof. Philip Schetle, MD from Germany and Boris Poberaj,MD from Slovenia. The topics that were presented by these experienced and proven doctors arose great interest and rich debate. Prof. Dr. Shetle addressed the topic “Unstable patella modern treatment”, while Dr. Poberaj devoted himself to the modern concept in the large rotator cuff defects treatment.