The use of the space maker is a scar-sparing technique. Time of operation and overall duration of expansion are reduced. Patient comfort is clearly improved. The negligible costs of a space maker are compensated by the cost reduction due to shorter operating time, fewer outpatient contacts and a low complication rate. The indications for the use of balloon dissectors are the expansion of skin (scar correction after burns, trauma, tumour), breast reconstruction and augmentation, and the prefabrication and rapid intraoperative expansion of musculocutaneous flaps.