[Effect of the ultrasound saw on bone growth and repair].

The effects of ultrasonic saw cuts in the epiphyseal cartilage reach were investigated experimentally in dogs. Saw cuts across led to an impaired growth, whereas longitudinal cuts caused a stimulation of growth. The dimensions of the growth influence were, however, very different and not calculable. Further on, the temporal lapse of the bony repair was investigated radiologically comparatively after osteotomy by the ultrasonic saw or by the oscillated saw. The bony repair took place more slowly after ultrasonic osteotomy generally speaking. The indications and limits for the application of the ultrasonic bone saw were deduced from the investigation results by including the bibliography.