اندازه گيري زاويه انتهاي فوقاني استخوان ران و مقايسه آن در مبتلايان به رفتگي مادرزادي مفصل ران

A COMPARITIVE STUDY OF UPPER END ANGLES OF FEMUR AMONG NORMAL AND CDH IRANIAN CASES

In this survey upper end angles of femur (N/S & antiversion) on 1032 Normal and CDH cases, aged between Birth to 76 years old, were meagered. Simple A/P X-rays were used to sign on them by marking on axis of head and Neack also on body axis of femur. The angle between two axes were measured by roller and goniometer. The results of linear regression and multivariation are analysed by paired t-test and these results were obtained: 1- Mean of NIS angle regardless of sex for normal cases was 130.85° and for CDH cases was 130.87°. 2- NIS angle regardless of sex, by increasing of age was significantly decreased. 3- Mean of NIS angle in Female cases was 129.43° and in male cases was 131.99°. 4- Mean of antiversion angles in normal cases was 23.03° and in CDH cases was 36.11°.