%0 Journal Article %T Lordose lombar: estudo dos valores angulares e da participa£¿£¿o dos corpos vertebrais e discos intervertebrais %A Damasceno %A Luiz Henrique Fonseca %A Catarin %A Silvio Ricardo Guarnieri %A Campos %A Ant£¿nio Dorival %A Defino %A Helton Luis Aparecido %J Acta Ortop¨¦dica Brasileira %D 2006 %I Sociedade Brasileira de Ortopedia e Traumatologia %R 10.1590/S1413-78522006000400003 %X the angular value of lumbar lordosis and the role of vertebral bodies and intervertebral discs in its constitution were studied in normal individuals. x-ray images of lumbar spine were studied in 350 normal and asymptomatic individuals, ages ranging from 18 to 50 years old (average 29.0 years old ¡À 8.24), being 143 males and 207 females. the lumbosacral (l1s1) and the lumbolumbar (l1l5) curves were measured. measurements for lumbar curves and their components presented a large variation. average values of -61o were seen for lumbosacral curve and of -45o for lumbolumbar curve. vertebral bodies measurements presented kyphotic values for l1, neutral for l2, and progressively lordotic for l3 - l5. intervertebral discs presented a progressive lordotic angulation from l1-l2. caudal elements of curvature, intervertebral discs l4-l5 and l5-s1 and the vertebral body l5 accounted for nearly 60% of the angular measurement of lumbosacral curvature. a significant difference was seen between males and females for lumbar curvature measurements, and for vertebral bodies l2 and l4, with females presenting higher values. age-related differences were found in lumbar curvature and vertebral bodies measurements. %K lumbosacral region %K lordosis %K lumbar vertebrae %K intervertebral disc. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1413-78522006000400003&lng=en&nrm=iso&tlng=en