Thirty-six children with funnel chest undergone sternal elevation and 210 children without thoracic de-formity were examined to determine Vertebral Index (VI) and Frontosagittal Index (FSI). The VI of normal children gradually increased and the FSI gradually decreased with age. Though the VI of patients decreased significantly from 32.5±7.8 to 24.6±4.0 after sternal elevation, it was significantly larger than the VI of normal children more than 3 years of age, which was 20.0±2.4. Though the FSI of patients increased significantly from 22.5±7.2 to 34.9±6.7 after the surgery, it was significantly smaller than the FSI of normal children more than 3 years of age, which was 41.6±4.3. While there was a correlation between VI and FSI both before and after surgery, presurgical VI or FSI was not correlated with postsurgical VI or FSI respectively. We con-cluded that finding of VI 37 were normal and finding of VI>25 and/or FSI<30 were indications for surgical treatment. However, it was not necessary to measure both indices simultaneously. Postsurgical VI and FSI could not always express the degree of depression of chest wall, and we could not predict the result of correction from presurgical VI and FSI.