Skeletal age estimation by pelvic X-ray of Han teenagers in Sichuan / 法医学杂志

OBJECTIVE@#To estimate the chronological age of Han teenagers in Sichuan by the epiphyses development characteristics of iliac crest and ischial tuberosity in X-ray digital images.@*METHODS@#According to TW2 classification principle, combining with the age range of our subjects and epiphyses development regularity, the degree of epiphyses development of iliac crest and ischial tuberosity had been divided into 8 grades (0-7) and 7 grades (0-6), respectively. Based on the degrees, the pelvic X-rays digital images of 691 samples of 16-20 aged teenagers were read and statistically analyzed by SPSS 19.0 software. The multiple linear regression equation was established by skeletal age (Y), development degree of iliac crest epiphyses (X1) and ischial tuberosity epiphyses (X2).@*RESULTS@#There were no statistical differences between two sides of epiphyses development of iliac crest and ischial tuberosity (P>0.05). There were no statistical difference between genders (P>0.05). The re-substitution method of the samples showed that the accuracy of equation as Y=15.269+0.444X1+0.236 X2 was high. The result of the re-substitution method showed a high accuracy of the equation.@*CONCLUSION@#The multiple linear regression equation could be used to identify the skeletal age for providing the scientific basis to identify the 18-year-old Han population in Sichuan.

Study of fusion of ischial tuberosity in Gujarati population by using digital x-ray method.

Forensic Medicine experts have to evaluate age in different medico legal situations, especially when the identity is not known, when the liability and punishment are related to the maturity. The study of epiphysial union of bones is considered a reasonable scientific and accepted method for estimation of age by the courts of law all over the world. The present study was carried out on 150 persons of age group between 17-21 years by using digital X-ray method in the Department of Forensic medicine and Toxicology at Govt. Medical College & New Civil Hospital, Surat.The present study possibly may generate the data giving shorter age intervals of fusion of centers of Ischial tuberosity (as compared to the standard text books or on the other end, may even positively reconfirm the evidential value of current data by using modern technique of digital X-ray). Anyhow, it will contribute to the better procurement and application of justice.

Roentgenographic assessment of skeletal ages of Asian junior youth football players.

Skeletal age of 50 football players participating in the Asian Junior Youth Tournament was assessed in an attempt to verify their stated chronological age to have a fair competition. Roentgenograms of hand and wrist (Greulich - Pyle standards), ilium and ischium were used for evaluation. More than half of the players had a bone age over the 16 year age limit of the Tournament and 30 percent of them had reached the maximum skeletal maturity of 19 years of age or over. Skeletal age is a reliable and dependable guide for assessing the physical maturity in this age group provided that proper local or international standards are set up.