ABSTRACT
Aseptic necrosis of bone has been described in diving lizards (mosasaurs) of the cretaceous period, although the association with human diving may not be entirely germane. In humans, infarction of areas of bone associated with exposure to pressure has been recognized since the turn of the twentieth century. e condition has been reviewed most recently in 20141. Twynam rst suggested a causal relationship between bone necrosis and pressure exposure in 1888 in a case report of a caisson worker constructing the Iron Cove Bridge in Sydney, although in retrospect the man appeared to have ‘septic’ necrosis.
