Femoral head necrosis is a relatively common disease in orthopedics, mainly manifested by gradually increasing pain at the lesion site until limping, which seriously affects the normal work and life of patients. Zhang Xuejun, Department of Interventional Radiology, Inner Mongolia Autonomous Region People’s Hospital
Femoral head necrosis is divided into two categories: traumatic and non-traumatic. The former causes sudden blockage of the blood supply artery to the femoral head resulting in ischemia, which eventually leads to osteonecrosis; while the main cause of the latter is related to long-term high-dose hormone use and alcohol abuse. Although there are various clinical treatments available, there is a lack of simple and effective means.
The rapid development of interventional therapeutics in the past 10 years has opened up a new way of treatment for osteonecrosis of the femoral head, and has achieved more satisfactory results.
The main method of interventional treatment for femoral head necrosis is to insert a catheter into the blood vessel at the lesion site and use vasodilators and thrombolytic drugs directly at the lesion site to reopen the occluded blood vessels, establish collateral vessels, unblock the microvessels in the joint area and the nutrient vessels of the femoral head to further improve the local blood circulation of the femoral head and restore blood flow to the ischemic bone. Dead bone is resorbed, new bone is formed, and necrosis is repaired.