[A procedure for quantitative roentgen image analysis for follow-up of Harrington scoliosis surgery].

A photometric procedure for evaluating non-standardized X-ray films is described. The X-ray series of a total of 23 patients operated on because of idiopathic scoliosis have been measured out. In 16 patients Harrington's method with dorsal spondylodesis was applied and in 7 patients an electrical stimulation with an implanted stimulator was additionally employed. A time-saving effect of about 30 per cent for the osseous consolidation is obtained by this method. The fundamental suitability of the photometric procedure can be demonstrated.