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Table 1 Characteristics of included studies

From: Comparison of transverse and modified subtrochanteric femoral shortening osteotomy in total hip arthroplasty for developmental dysplasia of hip: a meta-analysis

Study Country Mean age (range), year Sex, Female % Crowe classification Total, hips/patients Method of osteotomy Mean follow-up (range), years Nonunion, hips Nerve injury, hips Revision Dislocation Deep infection Harris hip score Limb-length discrepancy Acceptable discrepancy, patients
Pre-operative Post-operative Pre-operative Post-operative
Becker, 1995 USA 61 (48–72) N/A IV 7/4 Double-chevron 2.7 (0.3-6) 0 0 1 0 N/A N/A N/A N/A N/A N/A
Reikeraas, 1996 Norway 54 (17–67) 93.8 IV 25/19 Transverse (3–7) 0 1 N/A N/A N/A 43 93 N/A N/A N/A
Yasgur, 1997 USA 42 (22–77) 77.8 IV 9/8 Transverse 3.6 (2–7) 1 0 1 1 N/A N/A N/A N/A 1.5 N/A
Chareancholvanich, 1999 USA 51 (21–74) N/A N/A 15/11 Double-chevron 5.5 (2–8.5) 0 0 N/A 0 N/A N/A N/A 3.9 1.4 N/A
Zadeh, 1999 UK 49 (34–61) 71.4 I, II & IV 7/7 Transverse 2.6 (1.3-5.0) 1* N/A N/A N/A N/A 44 91 N/A N/A N/A
Bruce, 2000 Australia 53 (26–77) N/A III & IV 6/5 Transverse 4.7 (0.5-7.2) 0 0 N/A N/A 0 31 81 N/A N/A N/A
Ozturkmen, 2002 Turkey N/A N/A IV 7/7 Step-cut N/A 1 N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sener, 2002 Turkey 43 (26–64) 95.7 III & IV 28/23 Step-cut 4.0 (0.6-7.7) 2 2 0 0 0 36.9 95.3 N/A N/A 19
Decking, 2003 Germany 47 (19–58) 70.0 II.III & IV 12/10 Step-cut 5.1 (1.6-10) 0 1 1 0 0 36 82 5.4 1.3 N/A
Masonis, 2003 Canada 48.2 (21–70) 84.2 III & IV 21/19 Transverse 5.8 (2.0-11.2) 2 0 3 3 0 32.5 73.6 N/A N/A N/A
Erdemli, 2005 Turkey 44 (28–61) 100.0 IV 25/22 Step-cut in 3 hips 5 (2–10) 0 0 N/A N/A 0 N/A N/A N/A N/A N/A
Transverse in 22 hips 1 0 N/A N/A 0 N/A N/A N/A N/A N/A
Bernasek, 2007 USA 43 (17–67) 91.3 I.II.III & IV 23/20 Transverse 8 (5–14) 0 0 1 4 0 42 82 N/A N/A N/A
Gotze, 2007 Germany 41.7 (29–64) N/A III & IV 7/7 Transverse 1.5 0 N/A N/A N/A N/A 43 77 N/A N/A N/A
Makita, 2007 Japan 59.6 (42–76) 100.0 IV 11/11 Step-cut 5.4 (2.5-14.1) 0 2 1 1 0 N/A N/A 4.7 1.2 7
Park, 2007 Korea 44.8 (20–66) N/A III & IV 24/23 Transverse 4.7 (2.0-7.6) 3 0 1 1 N/A 35.6 81.7 N/A N/A 21
Krych, 2009 USA N/A N/A IV 28/24 Transverse 4.8 2 0 N/A 4 N/A 43 89 N/A N/A N/A
Nagoya, 2009 Japan 55 (44–69) 94.4 IV 20/18 Transverse 8.1 (4–11.5) 0 0 2 0 0 N/A N/A N/A 1.2 N/A
Howie, 2010 UK 47.3 (26–75) N/A III & IV 35/28 Transverse 5.6 (2–14) 1 2 7 3 1 N/A N/A N/A N/A N/A
Reikeraas, 2010 Norway 48 (16–79) 70.8 III & IV 65/46 Transverse 13 (8–18) 2 2 11 1 N/A N/A 87 N/A 1.0 N/A
Togrul, 2010 Turkey 42.3 (33–52) 85.7 III & IV 21/14 Transverse 3.4 (2.0-5.3) 0 0 N/A 2 0 N/A N/A N/A 0.3 N/A
Akiyama, 2011 Japan 58.9 (42–77) 90.9 III & IV 15/11 Transverse 6.3 (2.8-10.4) 3 0 3 2 N/A N/A N/A 2.9 0.3 11
Charity, 2011 UK 51 (33–75) 100.0 IV 18/15 Transverse 9.5 (4.3-14) 1 1 4 0 N/A N/A N/A N/A N/A N/A
Dallari, 2011 Italy 52 (34–66) 76.9 IV 33/26 Step-cut in 14 hips 7.3 (2.2-15.3) 0 N/A N/A N/A N/A N/A N/A 7.0 3.0 N/A
Oblique in 19 hips 1 N/A N/A N/A N/A N/A N/A N/A
Kawai, 2011 Japan 64.8 (57–73) 100 IV 19/12 Transverse 3.2 (0.5-8) 0 0 N/A 0 0 N/A N/A N/A N/A N/A
Kilicarslan, 2011 Turkey 46 (20–72) N/A III & IV 45/31 Transverse 7.2 (2.0-10.1) 5 0 N/A 2 N/A N/A N/A 2.9 1.4 N/A
Starker, 2011 Germany 44.6 83.3 IV 25/20 Step-cut N/A 0 N/A N/A N/A N/A N/A 90 N/A 0.8 20
Takao, 2011 Japan 60 92.0 IV 33/25 Step-cut 8 (5–11) 0 0 1 2 N/A N/A N/A 5.1 2.8 N/A
Zhong, 2011 China 45.2 (36–56) 100.0 IV 36/28 Transverse 4.4 (2.3-7.8) 0 0 N/A 0 0 39 87 5.7 0.6 N/A
Baz, 2012 Turkey 41.6 (24–56) 86.7 IV 21/15 Transverse 4.9 (3–8) 0 1 2 2 0 36.2 90.8 N/A N/A N/A
Hasegawa, 2012 Japan 58.5 (48–72) 100.0 IV 15/N/A Step-cut 10.2 (5–20) 0 1 4 3 0 56 85 3.8 1.4 N/A
Semenowicz, 2012 Poland 53.4 100.0 IV 10/10 Step-cut 2.3 0 0 N/A N/A N/A 43.7 86 N/A N/A N/A
Kilicoglu, 2013 Turkey 43 (27–60) 95.0 IV 20/16 Oblique 6.8 (3.7-10.3) 1* 0 2 3 N/A 50 83 N/A 1.0 N/A
Li WB, 2013 China N/A 100 IV 5/5 Transverse N/A 0 0 0 0 N/A N/A N/A N/A N/A N/A
Li YW, 2013 China 54 (41–75) 83.3 IV 22/18 Double-chevron 8 (3–12) 0 0 0 0 0 30 91.9 2.5 1 18
Oe, 2013 Japa 64.9 (35–80) 96.2 IV 34/26 Transverse 5.2 (3–10) 0 0 0 3 0 N/A N/A 4.7 1.2 26
Sun, 2013 China 47 (38–65) 63.3 IV 32/27 Transverse 4 (0.6-7) 0 1 0 0 0 41.7 89.1 N/A N/A N/A
Oinuma, 2014 Japan 61.5 (46–73) 100 IV 12/9 Transverse 3.7 (1.5-6.3) 0 0 0 1 0 N/A N/A N/A N/A N/A
Total / 50.0 88.1 / 791/N/A / / 27 14 45 38 1 / / / / /
  1. N/A: not available.
  2. *Delayed union that needs a second procedure.