ABSTRACT
A prospective study on fifty eight patients with establish nonunion of different bone segments was carried out. Patients were treated by autogenous bone marrow aspiration and re injection at the site of nonunion. Eight of those patients were lost on follow-up. Some cases had other associated problems as infection, gaping, negligence, hyper mobile fracture, or systemic compromise. It was intended that non of the cases have an associated rigid immobilization. Few of them received minimal external or internal splinting, which,is not expected to disseminate union in normal circumstances. On final assessment 34 cases [68%] gained excellent or good results, with 16 [32%] having poor results. Factors affecting the final results were analyzed, and a conclusion was reached, to which cases would be expected to get maximal benefit of this technique