ABSTRACT
Forensic pathologists and anthropologists use radiographic comparison for identification purpose for its uniqueness and stability overtime. The reliability of identification process is increased with the increasing number of methods used, so the need for methological variation is a must. The aim of the present study was to verify the reliability of trabecular bone pattern as a marker for identification and to investigate the influence of degenerative bone changes [osteoporosis] on trabecular archietecture overtime period. The sample studied in this research entailed forty-eight post menopausal wonen, Dual energy X-ray absorptiometry [DEXA] and Plan X-ray to wrist, lumber spine femoral regions were done at the beginning of research and after one year. Bone mineral density [BMD], Z score, T score and degree of osteoporosis were determined, twicely. The uniqueness and stability of trabecular pattern over one year period was examined using densitographs of wrist region [radius]. A computerized technique [contour program] was used to compare densitographs of same individuals [one year apart] and of different individuals, correlation coefficients were calculated for all possible combinations of pairs of densitographs. The results showed that the degree of osteoporosis was increased with age. A significant relation between the degree of osteoporosis and T score as well as Z score was encountered in our sample. A cut-off level r= 0.70 [of correlation coefficients] was estimated for positive identification of trabecular pattern densitographs of the same individual. In conclusion; densitographs of trabecular bone can be used as a quantifiable method for identification of humans in all age groups. Also, it is not influenced by bone degenerative diseases
Subject(s)
Humans , Female , Absorptiometry, Photon , Radiography , Individuality , Postmenopause , Wrist Joint , Lumbar Vertebrae , Bone Density , OsteoporosisABSTRACT
Forensic pathologists and anthropologists use radiographic comparison for identification purpose for its uniqueness and stability overtime. The reliability of identification process is increased with the increasing number of methods used, so the need for methodological variation is a must. The aim of the present study was to verify the reliability of trabecular bone pattern as a marker for identification and to investigate the influence of degenerative bone changes [osteoporosis] on trabecular architecture overtime period. The sample studied in this research entailed forty-eight post menopausal women, Dual energy X-ray absorptiometry [DEXA] and Plain X-ray to wrist, lumber spine and femoral regions were done at the beginning of research and after one year. Bone mineral density [BMD], Z score, T score and degree of osteoporosis were determined, twicely. The uniqueness and stability of trabecular pattern over one year period was examined using densitographs of wrist region [radius]. A computerized technique [contour program] was used to compare densitographs of same individuals [one year apart] and of different individuals, correlation coefficients were calculated for all possible combinations of pairs of densitographs. The results sowed that the degree of osteoporosis was increased with age. A significant relation between the degree of osteoporosis and T score as well as Z score was encountered in our sample. A cut-off level r=0.70 [of correlation coefficients] was estimated for positive identification of trabecular pattern densitographs of the same individual. In conclusion; densitographs of trabecular bone can be used as a quantifiable method for identification of humans in all age groups. Also, it is not influenced by bone degenerative diseases