Yamashita K
Department of Orthopedic Surgery, Kyorin University, School of Medicine, Tokyo, Japan.
Nihon Seikeigeka Gakkai Zasshi. 1988 Jan;62(1):23-36.
A radiological study of the coccyx and sacral vertebra was carried out in 1,000 healthy individuals, and in 500 individuals suffering from coccygeal pain. In terms of the age distribution of individuals suffering from coccygodynia, the peak of the distribution curve was found at fourth decade. Morphologically, the incidence of dislocation type was as follows: In the normal group, it was 2.6% in males, and 5.2% in females; in the traumatic group, the dislocation type was 5.1% in males, and 8.1% in females, in the idiopathic group, it was 4.8% in males, and 11.1% in females. The sacro-coccygeal angle was greater in the female than in the male. From these results it may be concluded that there is a greater occurrence of idiopathic coccygeal regional pain among females, owing to certain motor disadvantages affecting body movement, as well as possible hormonal imbalance and morphological abnormalities.
对1000名健康个体和500名患有尾骨疼痛的个体进行了尾骨和骶椎的放射学研究。就尾骨痛患者的年龄分布而言，分布曲线的峰值出现在第四个十年。形态学上，脱位型的发生率如下：正常组中，男性为2.6%，女性为5.2%；创伤组中，男性脱位型为5.1%，女性为8.1%，特发性组中，男性为4.8%，女性为11.1%。女性的骶尾角大于男性。从这些结果可以得出结论，由于影响身体运动的某些运动劣势以及可能的激素失衡和形态异常，女性特发性尾骨区域疼痛的发生率更高。
