We reviewed respectively the results of treatment of femotal neck fracture using ostesoynthetic methods, in 29 patients who were treated at the Department of Orthopedic Surgery, Guro hospital, Korea university, from January 1991 to December 1995. 20 cases were stabilized by cannulated hip screw, 6 cses by compression hip screw and 3 cases by Knowles pin. With the average follow up of 26 months (12-45 months), we analtzed the cauwe of injury with age, fracture types by Gardens method, the accuracy of reduction by Gardens alignment index and the functional results of the hip by Harris hip score and walking capacity. The adequacy of reduction by Gardens alignment index were as follows: anatsmical in 14, acceptable in 12 and poor in 3 cases. The fnetional results by Harris hip score and walking capacity were as follows : excellent in 21, good in 3, fair in 2 and poor in 3 cases. Complications after treatment of femoral neck fracture were one case of AVN, one case of non-union and two cases of combination of AVN and non-union. All these complications were developed in displaced femoral neck fracture with poor quality of reduction and directly correlated with initial displacement of fracture and reversely correlated with adequacy of reduction. Our concluwions are treatment of femoral neck fracture using osteosynthesis is favorable in young age regardless of intial displacement and in old age without osteoporosis and displacment and satisfactory results are produced from acceptable to anatomical reduction of fracture.