Clinical and roentgenological follow up study is carried out oa 66 cases of femoral neck fractures, treated at the department of orthopaedic surgery, National Medical Center with at least+ 8 months after treatment.
And gained .the result as follows;
1. Silty six cases were comprised of 30 males and 36 females, and 40 out of 66 were over 50 years old.
2. The most common cause of fracture was due ´to direct or indirect trauma caused by falling or stumbling accidents.
3. Silty one percept of the cases were rather old and neglected cases after injury.
4. Among 66 patients, 34 were treated by internal fixation, 17 Austin-Moore prosthetic .replacements, 1 hip fusion and 14 cast immobilization only. For internal fixation, devices were 26 Smith Petersen mils, 4 compression hip nails, 3 multiple pins and I sliding nail.
5. The incidence of avascular ,necrosis was 12 percent in ´34 cases treated by internal fixation and 36 percent in non-operative treatment. The incidence of non-union was 6 percent in internal fixation, and 36 percent in latter group. _ _ ,
6. Avascular necrosis and non-union after internal fixatio~Q were most common in Pauwels´ type III. .
7. Austin-Moore prosthetic replacement has been prefered in elderly patients regardless of the duration between injury and treatment.
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