Authors clinically analysed the end results of the 58 elderly patients having fresh femoral neck fracture who were treated with multiple Knowles pinning, compression hip screw and femoral head replacement. All these 58 patients were treated between January 1982 and December 1986 at the Presbyterian Medical Center, Chonju. The factors that influenced the clinical results were analysed by type of fractures, early and late post-operative complications, quality of the fractured bone(osteoporosis), and functional evaluation with Jesse's hip grading method at least post-operative two year later. The results were summerized as follows : 1. The slip down was the most common cause of injuries. The transcervical type and Garden's type 153 was the most common type of fractures. 2. Average time interval between injury and diagnosis is 6 days. In case of delayed diagnosis, the fractures showed more displacement. 3. The osteoporotic change of femoral neck and spine was increased as physiological age advanced in parallel. 4. As the osteoporosis advanced, the fractures showed more displacement. 5. As the kosteoporosis advanced, the final results were worse, 6. The group treated with compression hip screw showed less complication and better functional result than patients operated with multiple knowles pinning. 7. This study suggests that the important factors that influenced the clinical results were type of fracture, the interval between injury and operation, method of trearment, and the quality of the fractured bone(degree of osteoporosis)