A Comparison Study on Open and Closed Reduction Plus Cannulated Screws System for Femoral Neck Fractures

Objective To compare the clinical results of open and closed reduction plus cannulated screw stystem for femoral neck fractures.Methods A study was carried out in 70 cases of femoral neck fractures treated from July 2002 to January 2006,of whom there were 10 cases of type GardenⅡ fractures,22 type GardenⅢ and 38 type Ⅳ.All cases were followed up for average 28 months.Results Nonunion fractues occurred in 5 cases with union rate of 92.9%,femoral head necrosis in 8 cases with a necrosis rate of 11.4%.Of 42 cases with closed reduction plus cannulated screw,3 cases resulted in nonunion with union rate of 92.9%,5 cases suffered from femoral head necrosis with necrosis rate of 11.9%.Of 28 cases with open reduction plus cannulated screw,2 cases resulted in nonunion with union rate of 92.9%,3 cases suffered from femoral head necrosis with necrosis rate of 10.7%.Conclusion The femoral head necrosis and the nonunion of femoral neck fractures relate to fracture type and trement methods.The better reduction plus cannulated screw fixation can obtain better clinical results.Open reduction plus cannulated screw fixation do not add the nonunion rate and femoral head necrosis rate.