Abstract: Objective To discuss the relationship between age and the teenagers arthrography of shoulders.Methods We screened267X-ray films of shoulders of267boys from the age of12to22years.According to the characteristic of growth and development of skeleton,we observed the age characteristic of X-ray films systematic,and chose5film signs which were related with age closely.Then we ranked and scored all the objections according to the5film signs,raised the observe index and rank standard of determining age by anthrogragy of shoulder.We deal with all these data by SPSS software package and established an equation by which we can use it judge the age of teenagers by arthrography of shoulder.Results The determined equation:y=9.517+0.518x 1 +0.913x 2 +0.465x 3 +0.436x 4 .By analysis of variance,F>0.01,the regression is very significant.The equation has practical value.Conclusion This investigates confirmed that the arthrography of shoulder of teenagers has definite relationship to age.It provides the refence of age determination by x-ray flim of teenagers shoulder for medico legalphysician,and also accumulated data for anthropological research.

Key words: adolescent, skeletal age, X-ray