1 Department of Gland Surgery, The Affiliated Nanhua Hospital, Hengyang Medical school, University of South China Hengyang, 421002, China.
2 Institute of Clinical Research, The Affiliated Nanhua Hospital, Hengyang Medical school, University of South China Hengyang, 421002, China.
3 Department of Hand & Microsurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, 421002, China. Electronic address: orthoxrj@163.com.