Length And Curves Of The Clavicle In Northwest Indians

Length of paired clavicles of northwest Indians of Chandigarh zone was measured in 748 male and 252 female adults (18 to 90 years), 45 male and 30 female children and adolescents (11⁄2 to 17 years), 13 male and 12 female newborns (> 300 mm CR length) and 28 male and 24 female fetuses (32 to 299 mm CR length). In children and adults, the left bone was longer than the right. In fetuses and newborns either of the bone could be longer or the two bones could be of equal length. In adults the sexual difference in the mean length of the clavicle of the two sides was statistically highly significant in all age groups. In adults significant correlation existed in the clavicular length with supine body length, body weight, body surface area and age. The medial and lateral angles of the bone were measured in 113 male and 52 female adults of various age groups. The sum of the two angles, which indicated the total curvature of the bone, showed a statistically significant side and sexual differences in all age groups. With the use of right hand in children the right bone became more curved than the left leading to its straight length (side to side) becoming shorter than that of the left side.