PROXIMAL FEMUR MORPHOLOGY AND RADIOLOGICAL MEASUREMENT OF FEMUROACETABULAR DISTANCE

Ates A; Aydin E; Maralcan G

Volume : VIII, Issue : VI, June - 2019

PROXIMAL FEMUR MORPHOLOGY AND RADIOLOGICAL MEASUREMENT OF FEMUROACETABULAR DISTANCE

Ates A, Aydin E, Maralcan G

Abstract :

Aim: There are some bony landmarks that are highly important in outcomes of hip surgery. In our study we aimed to find answers to 4 questions: 1)Determination of the mean values of the distance between the superior tip of the trochanter major and the superior edge of the acetabulum in males and females; 2) Determination of the femoral neck-shaft angle (NSA), meaning the inclination angle, values of the Turkish people; 3) Determination of mean values of medial femoral offset;4) Determination of the amount of deviation of the line drawn perpendicular to the anatomical axis from the top of the trochanter major to the femoral head, in other words, where the head center is located in this line. We also aimed to compare these values in males and females and on right and left hips. Material and Method: The study group consisted of 200 patients, 100 females and 100 males, aged between 20 and 50 years, who were admitted with the complaint of hip pain and who had no joint pathology defined as a result of physical examination and radiological examinations. The AP pelvic radiographs were evaluated bilaterally by two observers. Results: In our study, in male patients, the distance between the superior tip of the trochanter major and superior margin of the acetabulum was 28.64 � 6.70 mm in right hip and 28.40 � 6.24 mm in left hip. These values were 26.01 � 5.62 mm and 26.04 � 5.31 mm in females, in right and left hips, respectively. Although there were not any significant differences between both sides in genders, in females the distance between the superior tip of the trochanter major and superior margin of the acetabulum was significantly shorter compared with the males. The second evaluated parameter NSA was determined as 128.19 �5.08� in males and 128.44 � 5.16� in females. Femur medial offset was determined as 52.05 �6.53 mm and 45.08 �5.64 mm, in males and females, respectively. Although there was a significant difference between genders, there was not any significant difference on right or left sides regarding horizontal offset. The last parameter analyzed was the distance between the femur head center and the trochanter major crest and in males, it was 11.22�5.45 mm on right hip and 8.65�4.86 mm on left hip while in females it was 11.01�4.96 mm on right hip and 8.43�4.26 mm on left hip. The difference between right and left hips was significant in both males and females. In our analyses, the center of the head of the femur was located below the tip of the trochanter major. Conclusion: In concomitant with the previous literature, orthopedics surgeons should be aware of the differences between genders and right and left sides to obtain the best outcomes after hip surgery.