Dr. Koon Ho Rha is Professor of Urology and Robotic and Minimally Invasive Surgery Center for Yonsei University, Severance Hospital, Seoul, South Korea.  This is the tenth in a step-by-step series of ten short unnarrated robotic prostatectomy videos.  In this video, we see the lymph node dissection is performed based on the patient’s preoperative risk for LN metastasis. Robotic surgery video, not narrated.  02:57