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Table 2 Characteristics of studies included in the meta-analysis of AVN 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From: RETRACTED ARTICLE: Open reduction and closed reduction internal fixation in treatment of femoral neck fractures: a meta-analysis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
Normal AVN Normal AVN
Liu[11] 2003 40 2 53 3
Upadhyay[20] 2004 36 8 41 7
Wang[12] 2005 18 2 41 1
Gao[21] 2008 25 3 37 5
Zhang[14] 2011 49 1 48 2
Kan[22] 2011 44 5 53 20
Kamal[23] 2011 15 3 8 3
Lin[16] 2012 19 0 13 2
Zhou[17] 2012 126 11 104 17
Xia[18] 2013 37 3 27 9
Mohammad[24] 2013 26 5 9 2
  1. ORIF, open reduction internal fixation; CRIF, closed reduction and internal fixation.