Abstract
The results of 50 shelf operations to 45 patients were followed up. The average of their age was 10 years and 1 month, and the average period of observation was 6 years and 4 months.
The method of shelf operation was mostly followed after Jinnaka's method.
Functional capacity of the hips and X-ray findings were evaluated in each case. The majority of the cases showed good functional hips without limb or pain in walking. Younger the age at surgery revealed better results. the oldest case who was 48 years old at the time of surgery showed poor functional result.
Improvement of CE angle and Acetabular angle were detected, however as far as concerning X-ray findings, generally the result of surgery was poor.
As a whole, 80% of the cases showed functional improvement more or less, and 6% showed bad result.
