The authors, as well as many other people, have encountered some misuses and complications of Ender nailing. Some surgical improvements are pointed out : reduction with a slight valgus, meticulous digging of the hole, sagital precurving of the nails, careful selection of loading criteria. A new device is also described from the Ender nail, that they modified : an Ender nail with a distal screwing slide which allows distal screwing and therefore prevents going down and rotation of the nails. A case study of three comparative series showed the substantial progress which was made possible by these technical improvements, and most of all by the distal sliding screwing.