Mohsen Hussein, assistant professor of medicine, completed a Phd in medicine with the thesis Anatomic ACL Reconstruction. He is a cofounder and director of Artros Center for Orthopaedic and Sports Medicine where he has been working as an Orthopaedic Surgeon since 2005. In addition, he is a founder of the Institute of Cellular Regenerative Medicine. He has a wide experience in knee surgery and treatment of sports injuries. Besides, he has been dealing with the issue of cartilage damage caused by injuries and degenerative changes for a long time. He is active in internatioanal orthopaedic organizations such as ISAKOS, ESSKA, and ICRS where currently he is a member of the Education Committee.