Chinese Expert Consensus on Clinical Diagnosis and Treatment Technique of Osteonecrosis of the Femoral Head (2023).

Osteonecrosis of the femoral head (ONFH) is a common and refractory disease. Although the exact pathophysiological mechanism is not fully understood, it is believed to be closely related to the interruption of intra-bone circulation and eventual bone tissue death. The prevention and treatment of ONFH are always a great challenge for orthopedists. The diagnostic level of ONFH has been continuously improved with the development of imaging techniques such as magnetic resource imaging and the in-depth understanding of the disease in recent years. There are many treatment methods for ONFH, which are generally considered individually and comprehensively according to factors such as the patient’s age, osteonecrosis stage, classification, and compliance with joint-sparing treatment. There is currently no unified standard. ONFH staging and classification play an important reference value for doctors to choose treatment options. In recent years, based on the characteristics of ONFH in Chinese people, the academic community has proposed Chinese staging and China-Japan Friendship Hospital classification. The consensus also introduces them together with the international ARCO staging to provide guidance for individualized treatment of ONFH. To further standardize the diagnosis of ONFH and expand the treatment of ONFH, the Association Related to Osseous Microcirculation Chinese Microcirculation Society organized domestic experts in the field of ONFH to jointly formulate the expert consensus, to provide reference for the standardized diagnosis of ONFH and the selection of individualized diagnosis and treatment techniques. Keywords: Expert consensus, Osteonecrosis of the femoral head, Diagnosis, Treatment technique