Epidemiological Study Based on China Osteonecrosis of the Femoral Head Database.

Objective: The aim of the present study was to reveal the case characteristics of osteonecrosis of the femoral head (ONFH) in Mainland China.

Methods: This cross-sectional epidemiological study derived data for ONFH patients from July 2016 to December 2018 from the China Osteonecrosis of the Femoral Head Database (CONFHD). The derived data included gender, age, body mass index (BMI), height, occupation, region, and etiology of femoral head necrosis.

[Arthroscopy-guided core decompression and bone grafting combined with selective arterial infusion for treatment of early stage avascular necrosis of femoral head].

Objective: To observe the clinical effects of arthroscopy-guided core decompression and bone grafting combined with selective arterial infusion for early stage avascular necrosis of femoral head.

Methods: From January 2010 to December 2014, 76 patients(76 hips) diagnosed as Ficat II stage avascular necrosis of femoral head were randomly divided into experimental group and control group. In the experimental group, there were 27 males and 8 females aged from 24 to 55 years old with an average of (43.