“…Thirty articles were included and analyzed, and the information was synthesized ([Ahn et al., 2015; Alagha, 2015; Alpayci & Ilter, 2017; Andias et al., 2018; Boyoung et al., 2016; Bronfort et al., 2012; Bunketorp et al., 2006; Chan et al., 2015; Cramer et al., 2013; Dellve et al., 2011; Dusunceli et al., 2009; Galindez‐Ibarbengoetxea et al., 2017; Gallego Izquierdo et al., 2016; Gelecek & Akkan, 2017; Hakkinen et al., 2008; Iversen et al., 2018; Jakobsen et al., 2014; Karlsson et al., 2014; Langevin et al., 2012; Lauche et al., 2017; Lee et al., 2016a; Martel et al., 2011; Nazari et al., 2018; Nikander et al., 2006; Soderlund et al., 2000; Taimela et al., 2000; Takasaki & Herbowy, 2016; Vikne et al., 2007; Yesil et al., 2018; Ylinen et al., 2007] —Table ). The protocol was developed based on the principles of treatment with the strongest available evidence.…”