Surgery is the branch of medicine that deals with the physical manipulation of a bodily structure to diagnose, prevent, or cure an ailment. Ambroise Paré, a 16th-century French surgeon, stated that to perform surgery is, "To eliminate that which is superfluous, restore that which has been dislocated, separate that which has been united, join that which has been divided and repair the defects of nature." Since humans first learned how to make and handle tools, they have employed these skills to develop increasingly sophisticated surgical techniques. However, until the Industrial Revolution, surgeons were incapable of overcoming the three principal obstacles which had plagued the medical profession from its infancy—bleeding, pain, and infection. Advances in these fields have transformed surgery from a risky art into a scientific discipline capable of treating many diseases and conditions.
Origins The first surgical techniques were developed to treat injuries and traumas. A combination of archaeological and anthropological studies offer insight into much earlier techniques for suturing lacerations, amputating unsalvageable limbs, and draining and cauterizing open wounds. Many examples exist: some Asian tribes used a mix of saltpeter and sulfur that was placed onto wounds and lit on fire to cauterize wounds; the Dakota people used the quill of a feather attached to an animal bladder to suck out purulent material; the discovery of needles from the Stone Age seems to suggest they were used in the suturing of cuts (the Maasai used needles of acacia for the same purpose); and tribes in India and South America developed an ingenious method of sealing minor injuries by applying termites or scarabs who bit the edges of the wound and then twisted the insects' neck, leaving their heads rigidly attached like staples.
Trepanation The oldest operation for which evidence exists is trepanation (also known as trepanning, trephination, trephining or burr hole from Greek τρύπανον and τρυπανισμός), in which a hole is drilled or scraped into the skull for exposing the dura mater to treat health problems related to intracranial pressure and other diseases. In the case of head wounds, surgical intervention was implemented for investigating and diagnosing the nature of the wound and the extent of the impact while bone splinters were removed preferably by scraping followed by post operation procedures and treatments for avoiding infection and aiding in the healing process. Evidence has been found in prehistoric human remains from Proto-Neolithic and Neolithic times, in cave paintings, and the procedure continued in use well into recorded history (being described by ancient Greek writers such as Hippocrates). Out of 120 prehistoric skulls found at one burial site in France dated to 6500 BCE, 40 had trepanation holes. Folke Henschen, a Swedish doctor and historian, asserts that Soviet excavations of the banks of the Dnieper River in the 1970s show the existence of trepanation in Mesolithic times dated to approximately 12000 BCE. The remains suggest a belief that trepanning could cure epileptic seizures, migraines, and certain mental disorders. There is significant evidence of healing of the bones of the skull in prehistoric skeletons, suggesting that many of those that proceeded with the surgery survived their operation. In some studies, the rate of survival surpassed 50%.
Amputation The oldest known surgical amputation was carried out in Borneo about 31,000 years ago. The operation involved the removal of the distal third of the left lower leg. The person survived the operation and lived for another 6 to 9 years. This is the only known surgical amputation carried out before the Neolithic Revolution and its farming transition. The next oldest known amputation was carried out about 7000 years ago on a farmer in France whose left forearm had been surgically removed.
Setting bones Examples of healed fractures in prehistoric human bones, suggesting setting and splinting have been found in the archeological record. Among some treatments used by the Aztecs, according to Spanish texts during the conquest of Mexico, was the reduction of fractured bones: "...the broken bone had to be splinted, extended and adjusted, and if this was not sufficient an incision was made at the end of the bone, and a branch of fir was inserted into the cavity of the medulla..." Modern medicine developed a technique similar to this in the 20th century known as medullary fixation.
Anesthesia
Bloodletting
Bloodletting is one of the oldest medical practices, having been practiced among diverse ancient peoples, including the Mesopotamians, the Egyptians, the Greeks, the Mayans, Indians and the Aztecs. In Greece, bloodletting was in use around the time of Hippocrates, who mentions bloodletting but in general relied on dietary techniques. Erasistratus, however, theorized that many diseases were caused by plethoras, or overabundances, in the blood, and advised that these plethoras be treated, initially, by exercise, sweating, reduced food intake, and vomiting. Herophilus advocated bloodletting. Archagathus, one of the first Greek physicians to practice in Rome, practiced bloodletting extensively. The art of bloodletting became very popular in the West, and during the Renaissance one could find bloodletting calendars that recommended appropriate times to bloodlet during the year and books that claimed bloodletting would cure inflammation, infections, strokes, manic psychosis and more.
Antiquity
Mesopotamia The Sumerians saw sickness as a divine punishment imposed by different demons when an individual broke a rule. For this reason, to be a physician, one had to learn to identify approximately 6,000 possible demons that might cause health problems. To do this, the Sumerians employed divining techniques based on the flight of birds, position of the stars and the livers of certain animals. In this way, medicine was intimately linked to priests, relegating surgery to a second-class medical specialty. Nevertheless, the Sumerians developed several important medical techniques: in Ninevah archaeologists have discovered bronze instruments with sharpened obsidian resembling modern day scalpels, knives, trephines, etc. The Code of Hammurabi, one of the earliest Babylonian code of laws, itself contains specific legislation regulating surgeons and medical compensation as well as malpractice and victim's compensation:
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