1 Department of Ultrasound, The Third Hospital of BaoGang Group, No.15 Qingnian Road, Kundulun District, Baotou City, Inner Mongolia, 014017, China.
2 Department of Ultrasound, The Third Hospital of BaoGang Group, No.15 Qingnian Road, Kundulun District, Baotou City, Inner Mongolia, 014017, China. Electronic address: mengxiaotao288@sina.com.
3 Inner Mongolia Medical University, Department of Orthopedics, Affiliated Hospital of Inner Mongolia Medical University, Huhehot North Street, Inner Mongolia, 010050, China.