[Correlation between cold pain of knee joint and subchondral bone marrow edema in patients with knee osteoarthritis].

Objective: To investigate relationship between cold pain of knee joint and subchondral bone marrow edema (BME).

Methods: From May 2018 to August 2019, 92 patients with knee osteoarthritis (KOA) associated with cold pain of knee were admitted, all patients were underwent MRI examination. The patients were divided into observation group (47 patients with BME) and control group(45 patients without BME).