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Work on the skeleton: Fund on Borneo
Photo: Tim Maloney / dpa
According to experts, a skeleton with only one foot found on Borneo is the oldest evidence of an amputation.
Scientists write in the journal Nature that the prehistoric surgeon or surgeons performed the operation with a great deal of medical expertise around 31,000 years ago.
So far, the forearm surgery of a farmer in France around 7000 years ago was considered the earliest evidence.
"The new finding in Borneo shows that people could shed injured or diseased limbs long before they had started farming and settled down," explains co-study leader Maxime Aubert from Australia's Griffith University.
To determine the age of the skeleton, the researchers radiocarbon-dated pieces of charcoal found near the tomb.
In addition, the age of a molar was determined using another technique.
amputation in childhood
The skeleton was found in the limestone cave of Liang Tebo in Indonesian Borneo.
The cave consists of three chambers, is about 160 square meters and partly painted with rock art.
During excavations in 2020, the almost complete skeleton of a 20-year-old human (Homo sapiens) was discovered who had been buried there.
According to the researchers, it is not possible to say with certainty whether it is a woman or a man.
During the excavations, they discovered that the skeleton was missing its left foot.
Experts assume that Stone Age man lost about a third of his left leg during an operation.
The way the tibia and fibula were severed does not indicate an accident or animal attack.
Aubert's team also considers punishment unlikely, partly because the person was apparently well cared for after the operation and lived for at least six years.
Unusual bone growth as a result of a healing process on the severed bones leads to the conclusion that the amputation took place in childhood.
The experts emphasize that in the western world, amputations have only been part of the standard repertoire of surgeons for about a hundred years.
The chances of survival were previously considered very low, partly because there were no antibiotics to prevent infections.
Sedatives in action?
According to the study, the Stone Age surgeon or surgeons must already have been very familiar with the anatomy of the human limbs, muscles and vascular system.
Because they apparently operated without fatal blood loss and without the patient later dying of an infection.
It was probably necessary to clean and disinfect the amputation wound regularly, possibly with local medicinal plants.
"It was a great surprise that this early hunter survived a very serious and life-threatening operation in childhood," says co-author Melandri Vlok from the University of Sydney.
“His wound healed and formed a leg stump.
And then this person lived for years in mountainous terrain with limited mobility.
This suggests a high level of community nurturing.”
The experts report that the knowledge required for the procedure was probably a result of trial and error over a long period of time and passed on to generations.
It is unclear why the leg had to be removed.
One can only speculate about the type of tool, writes Charlotte Ann Roberts from Durham University in a comment on the study.
The experts assume a sharp object.
"Another intriguing question is whether the child was given pain medication, such as plant-based tranquilizers, for the surgery," Roberts writes.
jme/dpa
