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Table 1 Characteristics of studies included in the meta-analysis of the nonunion rate between the two groups

From: RETRACTED ARTICLE: Open reduction and closed reduction internal fixation in treatment of femoral neck fractures: a meta-analysis

Study Year ORIF CRIF
Union Nonunion Union Nonunion
Liu[11] 2003 21 21 33 23
Wang[12] 2005 19 1 41 1
Song[13] 2010 14 1 7 5
Zhang[14] 2011 47 3 48 2
Ye[15] 2011 16 12 19 13
Lin[16] 2012 18 1 12 3
Zhou[17] 2012 124 13 113 8
Xia[18] 2013 37 3 33 3
Zhang[19] 2013 43 11 68 10
  1. ORIF, open reduction internal fixation; CRIF, closed reduction and internal fixation.