He was born in Köyceğiz, Muğla. He is a graduate of Ege University Faculty of Medicine and trained in Orthopedics and Traumatology Department at Çukurova University Faculty of Medicine. He started to work as an orthopedist in the same clinic and completed his academic career there.
He carried out studies in Baylor Medical School, Kansas University, Washington Military Medical School and Texas Orthopedic Hospital in the United States; in Kurgan Ilizarov Hospital in Russia; and in Calot Institute in France. Being specialized in diagnosis and treatment of all diseases related to Orthopedics and Traumatology, in addition to Orthopedics, he has been recognized for his work in Spinal Diseases, External Fixation and Biomechanics.
Prof. Dr. Gülşen has been the first practitioner of many treatment methods in our country such as the correction of rheumatic kyphosis and the extension of height by means of Ilizarov methods. He has received patents in the Spine and External Fixation fields; he has written many articles, books and book chapters; he has held World Ilizarov Congress, 7th International Spine Congress, Ilizarov and Çukurova Information Renovation Courses presidencies; he has given many lectures domestically and abroad including Algeria, Korea and Jordan.
Spinal and cervical disc herniations, spinal curvatures, spinal fractures, arm and leg lengthening, correction of congenital and other deformities are Prof. Dr. Gülşen’s special field of interests as well as non-healing fractures and osteomyelitis.