The aim of the work is an analysis results of the þxation of dislocated femoral neck fractures by DHS-YU implant. The analysis of the patients age inßuence, reposition type, fracture type and time tistance length between þxation and fracture to the level of fracture unhealing and the femoral head avascular necrosis. During the period from January 1995 to January 2000, 150 dislocated femoral neck fractures were þxed by same number of patients with DHS-YU implant with two diaphysis perforations at the Orthopedics Traumatology Ward of Pozarevac Hospital. The average age of the observed patients is 62. The relation according tisex is 1:7 in favor of females. The fractures are classiþed by Gared clasiþcation type, type III angular fractures and type IV completely dislocated fractures. The complications were specially analysys in relation to the fractures type. The fractures were replaced by closed and oped reposition with out routine effort of closed reposition by all patients. The complication level was specially analysed in relation to the patients age the group younger that 60 and the group older that 60. The inßuence of postpoing the operation longer that 72 hours to the appearance of complications was analysed too. The complications (fractures unhealing and femoral head avascular necrosis) Were analysed by regular checkups every 3,6,12 and 24 months.

The whole complications level is not signiþcantly higher accordig to statistics with the group of patients younger that 60. The level avascular necrosis is signiþcantly higher with the group of patients younger that 60 while unhealing is signiþcantly more frequent with the group older that 60. The whole complications level is signiþcantly higher with the group of patients with closed reposition. Also the avascular necrosis level is signiþcantly higher with the group of patients with closed reposition. (p< 0.01) The total number of complications is signiþcantly higher with the group of patients by whom the fracture has been replaced after 72 hours. Avascular necrosis is highly signiþcant according to statistics with the group of patients by whom the fracture has been replaced after 72 hours and statistically the unhealing level is signiþcantly higher with this group of fractures. (p< 0.01) The total number of complications is signiþcantly higher with the Garden IV group of fractures.(p< 0.001)