Aim of the study is clinical evaluation of usage of cortical intramedular autografts, while treatment of long bones non-unions. During 2003-2013 years, in Traumatology Orthopedical Clinic "Syntese" and L.T.D. "Centre of Urgent Surgery and Traumatology" we have treated 35 patients with diafisial fractures of long bones by use of intramedular grafting. Among them were 12 cases of femoral fracture, 10 - cases of humeral and 13 cases of tibial fractures. Age distributions of patients was: from 16 years up to 30 years - 5 patients (14%): 31- 45 years 21 patients (60%), over 45 years - 9 patients (26%). Types of bone regeneration violation: research group: hypertrophic - 9 (26%), hypotrophic - 11 (31%), athrophyc - 22 (44%). Bone healing was reached in all cases. Average period of healing was 4.9 months. But it ranged from 4 up to 7.7 months. Not satisfactory result was found in 1case, satisfactory result in 2 cases, good result in 32 cases, condition of nearby joints was found as perfect in 72% of cases, good in 14% of cases, satisfactory in 12% and not satisfactory in 2% of cases. Usage of cortical fibular intramedular autografts, authentically increases range of positive results, while treatment of long bones non- unions.