Acute decompression osteonecrosis

Decompression osteonecrosis is osteonecrosis that occurs in high-pressure workers or divers. Nearly half of the workers engaged in high-pressure work can have bone and joint damage. In the early stage, it is an asymptomatic bone injury, which can only be found on X-rays. The typical sites are the humerus, femur, and tibia. As long as there is a history of high pressure exposure, decompression osteonecrosis may occur regardless of whether or not they have suffered acute decompression sickness. At the end of the 18th century, there were high pressure exposure during diving, tunneling or caisson operation. Only after X-ray examination was applied to the clinic in 1895, Bassoe in the United States and Bornstein in Germany first reported osteonecrosis caused by high pressure. The case X-ray showed typical rheumatoid arthritis changes.