MEASUREMENTS OF THE TORSIONAL AND INCLINATIONAL ANGLES OF THE FEMORAL NECK IN THE CHINESE
- VernacularTitle:国人股骨颈干角及扭转角的测量统计
- Author:
Huaitao ZHANG
;
Jingzhong ZHENG
;
Yutian YANG
- Publication Type:Journal Article
- From:
Acta Anatomica Sinica
1955;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Femurs of 206 Chinese adults (122 males and 84 females) were used for the present study. Their lengths, and torsional and inclinational angles were measured after Martin's method. The results are as follows:1. The Lengths of FemurThe average length of the femur in males is 43.68?2.02 cm. (43.77?2.02 cm. on the left side, and 43.61?2.04 cm. on the right), while that in females is 40.96?2.84 cm. (41.05?2.84 cm. on the left side and 40.93?2.84 cm. on the right). No significant difference has been found between the femoral lengths of both sides; however, there is a significant difference between both sexes.2. The inclinational angles of femoral neckTheir average value in the male is 128.46??6.58?(128.87??6.76?on the left side, and 127.46??6.60? on the right), but that in the female is 130.52??6.44?(130.88??6.10? on the left side, and 130.17??6.80? on the right). No significant difference exists between both sides; however, there is a significant difference between both sexes.3. The Torsional Angles of FemurTheir average value in the male is 11.95??8.89? (14.51??8.08? on the left side, and 9.20??7.75? on the right), whereas that in the female is 12.80??9.07? (15.95??9.63? on the left side, and 9.63??7.31? on the right). There is a significant difference between two sides, but no significant difference between both sexes.4. The relationship between the inclinational and torsional angles on one hand and the changes in the femoral lengths on the other has been studied by dividing the femurs into groups according to their lengths. It has been shown that the changes in the femoral length exert no effect upon the inclinational and torsional angles of the femoral necks, neither in the male nor in the female.Besides, a comparison has also been made between the femurs of both sides and both sexes, between the femoral lengths and the inclinational and torsional angles, and between the variant ranges of the torsional angles of femurs. A discussion on these problems has been made with reference to the racial differences.
