“…For this reason several systems with lifting or weight neutralizing function mainly for recovery after fracture repair have been developed. These include sling systems in combination with hoists (Liechti et al 2003, Driessen 2005, Taylor et al 2005, Fürst et al 2008, tilt tables (Elmas et al 2007) and pool systems exploiting buoyancy of water (Sullivan et al 2002, Tidwell et al 2002.…”