The effect of scoliosis surgery on parathormone, calcitonin and calcium levels in serum and the urinary excretion of calcium.

This study investigates mineral metabolism following scoliosis surgery in girls. During the first week there was a significant increase in the secretion of parathormone and a decrease in that of calcitonin. The serum calcium became significantly elevated from between the 3rd and 7th post-operative days. The serum phosphate decreased during the first week and increased significantly thereafter. The urinary excretion of calcium increased five-fold.