[The child's skeleton following renal transplant. A correlation of the radiographic findings to the amount of parathormone (author's transl)].

The skeletal X-rays (magnification radiography of hand, pelvis, knee and shoulder joint) of 20 children before and after successful kidney transplantation were compared with the parathormone concentrations measured in the interval closest to the roentgenological examination. In 19 children, renal osteodystrophy existed before kidney transplantation, which was diagnosed based on the following radiographic findings of varying frequency: rarefaction and fuzziness of the spongiosa, fraying of metaphysical ends, widening of the growth plates, subperiosteal resorption and acroosteolysis. The parathormone concentrations were definitely increased before kidney transplantation. After kidney transplantation the abnormal radiographic findings receded corresponding to normalisation of the parathormone concentrations. Nevertheless, in 14 out of 19 children a rarefaction of the spongiosa remained, the cause of which is presumed to be steroid therapy.