“…In addition, the following imaging methods have been used as an objective assessment to quantify the severities of the clubfoot such as magnetic resonance imaging (MRI) (Cahuzac et al, 1999 ; Itohara et al, 2005 ; Duce et al, 2013 ), computed tomography (CT) (Reikeras et al, 2001 ; Ippolito et al, 2004 ; Farsetti et al, 2009 ), and radiography or X-ray methods (Ippolito et al, 2004 ; Baghdadi et al, 2017 ). However, several studies reported that there is no universal standard assessment method available at present to quantify the initial severity of the clubfoot or monitor the clubfoot treatment (Jain et al, 2001 ; Gigante et al, 2004 ; Dyer and Davis, 2006 ; Ramanathan et al, 2009 ; Ramanathan and Abboud, 2010 ; Yapp et al, 2012 ; Bhaskar and Patni, 2013 ). Because it is difficult to obtain the objective measurements from all these classification systems (Catterrall classification system, Pirani scoring, Dimeglio classification system, and Harrold and Walker classification system) due to subjective in nature (Wainwright et al, 2002 ; Jain et al, 2012 , 2017 ; Fan et al, 2017 ).…”