[1] Fuzhou Second Hosp, Dept Pediat Orthoped, Fuzhou, Fujian, Peoples R China
[2] Huazhong Univ Sci & Technol, Wuhan Union Hosp, Tongji Med Coll, Dept Pediat Orthoped, Wuhan, Peoples R China
[3] IRCCS Ist Giannina Gaslini, Orthoped & Traumatol Dept, Genoa, Italy
[4] Univ Genoa, Dept Integrated Surg & Diagnost Sci DISC, Genoa, Italy