Table 1 Characteristics of the included studies
Study | Groups | Patients (M/F) | Age at surgery (year) | Times | Internal (month) | Final fusion | Diagnoses | Follow-up (year or month) | |
|---|---|---|---|---|---|---|---|---|---|
Thompson, GH 2005 [10] | Single | 21 (8/13) | 8.3 ± 2.2 < 10 14, >10 7 | 2.9 ± 1.5 | 7.1 ± 4.9 | 21 | Idiopathic 9, neuromuscular 7, congenital 1, other 4 | 7.6 ± 2.8 years | |
Dual | 7 (1/6) | 7.0 ± 3.9 < 10 6, >10 1 | 6.1 ± 2.8 | 6.0 ± 0.4 | 7 | Idiopathic 1, neuromuscular 1, congenital 1, other 4 | 6.0 ± 2.0 years | ||
Sponseller, PD 2009 [15] | Single | 2 | 8.4 ± 1.4 | N | 12.7 ± 6.9 | 5 | Marfan syndrome 9 | 102.5 ± 1.5 months | |
Dual | 7 | 4.7 ± 2.3 | 82.6 ± 31.3 months | ||||||
Bess, S 2010 [16] | Single | 71 (41/30) | 6.5 | 4 (0–11) | 9.9 (2–24) | 36 | Idiopathic 40, neuromuscular 52, congenital 24, other 24 | 65.3 (24–166) months | |
Dual | 69 (30/39) | 5.5 | 5 (2–13) | 10.9 (5–33) | 14 | 53.8 (24.7–126) months | |||
Uzumcugil, O 2012 [18] | Single | 11 (3/8) | 7.5 ± 0.9 | 5.0 ± 0.6 | N | N | Idiopathic 16, congenital 4 | 2.8 (2–4.8) years | |
Dual | 9 (2/7) | 7.9 ± 1.3 | 4.1 ± 0.8 | N | N | 2.3(2–3.1) years | |||
Zhao, Y 2012 [17] | Single | 6 (2/4) | <10 5, >10 1 | N | 6–12 | 4 | Neuromuscular 1, congenital 24 | 31.9 (12–89) months | |
Dual | 19 (6/13) | <10 18, >10 1 | 2 | ||||||
Akgul, T 2014 [11] | Single | 15 | (9/14) | 7.5 ± 2.2 | 2.1 ± 1.14 | 13 (2–28) | 9 | Idiopathic 11, neuromuscular 2, congenital 10 | 43.6 ± 23.2 months |
Dual | 8 | 1 | 35.7 ± 14.6 months | ||||||