[Yu, Hai-Ming; Lin, Shu-Feng; Yao, Xue-Dong] Fujian Med Univ, Affiliated Hosp 2, Dept Orthopaed, 34 Zhongshan North Rd, Quanzhou 362000, Fujian, Peoples R China.
[Chen, Xiao-Lei] Second Peoples Hosp Henan Prov, Dept Orthoped, Zhengzhou 451191, Henan, Peoples R China.
[Wei, Wu] Wuzhou Red Cross Hosp Guangxi, Dept Orthoped 1, Wuzhou 543002, Peoples R China.
[Sun, Jing-Qun] Third Hosp Xiamen, Dept Orthopaed, Xiamen 361100, Peoples R China.
[Su, Xiao-Tao] Univ South China, Affiliated NanHua Hosp, Hengyang 421002, Peoples R China.