Abstract
As it was reported previously, in TB cases the decrease of Na-content in the rib bone presumably did not reveal the entire picture of electrolyte metabolism of osseous system. However, it is interesting to follow the postoperative evolution of serum concentration as well as urinary excreation of Na. In the present study, further observations were made at postoperative period in order to determine relationship between Na in serum and in urine excreation, and electrolyte contents of bones and muscles. The results and conclusion were summarized as follows:
1. On the, second postoperative day, serum sodium and chloride concentrations markedly decreased and the urinary postassium excretion increased although serum potassium concentration was variable.
2. These postoperative electrolyte alterations in serum and urine were incompletely recovered even on the 7th postoperative day.
3. It was observed that there was no close relationship between the preoperative value of sodium contents in rib and muscle, and the postoperative serum concentration and urinary excretion of electrolytes.
