Kristina Joksimovic, 38, was found dead in her home in Binningen, near Basel,
Switzerland, in February this year.
According to
local news outlet BZ Basel, a man named Thomas, 41, had an appeal for release from custody denied by the Federal Court in Lausanne on Wednesday after he reportedly confessed to killing his wife, with whom he had two children.
The outlet said he had admitted to the killing during a crime reconstruction in March, and claimed it was in self-defence after she attacked him with a knife.
BZ Basel said the ruling from the court held Ms Joksimovic was strangled to death. An autopsy report included in the ruling said Ms Joksimovic's body was then dismembered in a laundry room with a jigsaw, knife and garden shears.
It added body parts were then chopped up with a hand blender, "pureed" and dissolved in a chemical solution.
BZ Basel also said Thomas was arrested the day after Ms Joksimovic's body was found, and initially told investigators he had found her dead and dismembered her body in their laundry room in panic.