Endomedullary nailing by Ender technique is a new method of metallic synthesis for perthrocanteric and subthrocanteric fractures. The difference with the other methods of ostheosinthesis is given by an elastic sinthesis of dynamic type, with endomedullary pins. The surgical technique is easy, not excessively stressing, very rapid. A surgical approach to distal femoral metaphysis is necessary; successively three or four particular metallic pins are put inside the medullary space, in proximal direction. This technique given excellent results in 50% of cases; good results in 25%; poor in 15%. The postoperatory mortality is particular limited amounts only to 10% (with an average of 78 years).