[Yang, Xucheng; Lei, Pengfei; Wang, Wu; Yang, XC] Cent South Univ, Dept Orthoped, Xiangya Hosp, 87 Xiangya Rd, Changsha 410008, Hunan, Peoples R China.
[Cui, Juncheng] Univ South China, Dept Orthoped, Affiliated Hosp 1, Hengyang, Peoples R China.
[Wang, Wu] Xinjiang Med Univ, Dept Orthoped, Affiliated Hosp 1, Urumqi, Peoples R China.
[Liu, Hao] Univ Pittsburgh, Dept Surg, Pittsburgh, PA USA.
[Luo, Zhenhua] Hunan Univ Chinese Med, Dept Orthoped, Hosp 1, 95 Shaoshan Middle Rd, Changsha 410007, Hunan, Peoples R China.