[Immobilisation hypercalciuria (author's transl)].

The calcium excretion was investigated in 31 children who were immobilised because of fracture of the femur. Children over the age of 5 years treated with Kirschner wire extension showed a statistically significant rise of calcium excretion as compared with a control group but this reverted rapidly after mobilisation. Younger patients treated by overhead traction showed a decreased calcium excretion. The Calcium Excretion Quotient (CEQ) based on the calcium excretion in the early morning specimens of urine and the specific gravity were used to determine hypercalcemia. Dietary management or drug treatment is not necessary in this situation.