BONE-DUST IN AUTOPSIES - REDUCTION OF SPREADING

During autopsies, an open oscillating saw produces large quantities of respirable bone-dust, which is able to carry microbes over several me tres, Experiments were done using a modified (open) undulation saw (sp ray tube to moisten the saw-blade with water). Saw-dust was asservated with culture media. Colonies were identified macroscopically. Microbe s in the air were quantified (per unit of time). A remarkable reductio n of saw-dust is done by an integrated spray tube using water, There r emains a contamination at the head of the autopsy table in the level o f the table-top. We found a complete decontamination 150 cm above the floor. No spreading of particles carrying microbes was seen over dista nces of more than 1.5 m. The risk of an airborne infection is minimal when using a manual saw (absence of grinding-dust). The modified type of an 'oscillating saw with a spray-tube' may be considered a practica ble compromise between a manual saw and an unprotected undulation saw. It is necessary to complete the precautions against airborne infectio ns by breath masks and safety-goggles.