A non-union is a fracture that will not consolidate without any further intervention. The aim of our study was to identify the etiologies of non-union of femoral shaft in Togo, to describe their management and to analyse results. Methods : this was a retrospecive study that took place from january 1, 2015 to december 31, 2019. It concerned the medical records of patients treated for non-union of the femoral shaft in three hospitals in Togo. Results : Fifty-two medical records were retained. The mean age of the patients was 41 years old and the sex-ratio was 2.46 in favor of men. Fractures were caused by road accident in 49 cases (94,23%). Non-union occured after closed fracture in 45 cases (86,5%), and after open fracture in 7 cases (13,5%). There was aseptic non-union in 46 cases (88,5%) and septic non-union in 6 cases (11,5%). The initial treatment was surgical (39 cases, 75%), traditional (12 cases, 23%), and orthopedic (1 case, 2%). The causes of failure of the initial treatment identified were dominated by instability of the fracture site and significant periosteal removal during the first surgery. The surgical management of non-union was performed in 50 cases. In two cases, the transfemoral amputation was done. Osteoperiostal decortication was performed with or without autologous graft in 31 cases (62%). The intramedullary nail was used (38 cases, 76%). The consolidation rate was 96%. According to the criteria of the « Association for Study and Application of the Method of Ilizarov », the fonctional results were excellent in 23 cases (44,2%), good in 19 cases (36,6%), fair in 6 cases (11,5%) and poor in 4 cases (7,7%). Conclusion : Femoral shaft non-union affected young patients. It is most often favored by high energy trauma, by traditional traitment and by imperfect osteosynthesis. The functional results of the surgical management are satisfactory.