This contributes to progressive secondary arthritis and can result in the collapse from the bone. This really is brought on by abnormal microcirculation and results in mobile death (necrosis). Deep sea divers and miners who perform less than great atmospheric pressures also are at risk for damage to the blood vessels. https://www.theorthopaedicandpainpractice.com/what-is-avascular-necrosis-of-the-hip/?_gl=1*xbbxlb*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB