Table 1.
Characteristic of the included studies
| Author | Year of publication | Year of onset | Mean age | Sample size (unilateral/bilateral) | Sex distribution (male/female) | Outcome measurements | Follow-up time |
|---|---|---|---|---|---|---|---|
| Chen CM [25] | 2014 | – | Unilateral group, 69.43 ± 6.25; bilateral group, 68.66 ± 8.76 | 39 (20/19) | –/– | VAS, ODI, surgery time, Cement leakage, injected cement volume | 2 years |
| Feng Y [26] | 2014 | February 2010 to February 2012 | Unilateral group, 72.5; bilateral group, 69.4 | 117 (61/56) | 30/87 | VAS, ODI, injected cement volume | 2 years |
| Guo ZP [27] | 2015 | March 2008 to March 2014 | Unilateral group, 67.32 ± 11.24; bilateral group, 69.35 ± 12.46 | 153 (91/62) | 29/124 | VAS, ODI, surgery time, Injected cement volume, cement leakage | – |
| Li J [28] | 2015 | April 2007 to February 2014 | Unilateral group, 67.9; bilateral group, 65.7 | 65 (36/29) | 30/35 | VAS, surgery time, injected cement volume, cement leakage | 6 to 18 months |
| Ren HL [29] | 2014 | January 2009 to January 2012 | Unilateral group, 69.4 ± 10.4; bilateral group, 69.7±9.7 | 101 (45/56) | 17/84 | Surgery time, injected cement volume, cement leakage | More than 1 year |
| Wang W [30] | 2013 | February 2009 to February 2011 | Unilateral group, 66.9; bilateral group, 68.7 | 47 (25/22) | 18/29 | VAS, cement leakage | 1 year |
| Xiao L [31] | 2015 | September 2012 to December 2014 | Unilateral group, 70.9 ± 9.3; bilateral group, 68.5±7.3 | 71 (40/31) | –/– | VAS, injected cement volume, cement leakage | 3 days |
| Yuan WQ [32] | 2014 | June 2013 to June 2014 | 70.36 ± 0.35 | 72 (36/36) | 33/39 | Surgery time, injected cement volume | 2 days |
| Zhai HL [33] |
2013 | January 2010 to February 2012 | Unilateral group, 70.5; bilateral group, 74.3 | 48 (27/21) | 6/42 | VAS, surgery time, injected cement volume | 1 day |
| Zhang L [34] | 2015 | November 2010 to October 2012 | Unilateral group, 71.7 ± 7.5; bilateral group, 72.1 ± 6.0 | 50 (24/26) | 13/37 | VAS, ODI, PCS, MCS, surgery time, cement leakage, injected cement volume | 2 years |
| Zhang LG [35] | 2015 | January 2008 to December 2011 | Unilateral group, 70.0 ± 2.9; bilateral group, 70.7 ± 2.5 | 68 (36/32) | 0/68 | VAS, QUALEFFO, cement, cement leakage | 1 year |
| Zhang X [36] | 2014 | March 2012 to August 2013 | 70 ± 0.27 | 53 (28/25) | 25/28 | Surgery time, injected cement volume | – |
| Zhao XQ [37] | 2014 | May 2011 to February 2013 | Unilateral group, 74; bilateral group, 73 | 80 (40/40) | 48/32 | Curative effect, surgery time, injected cement volume | 2 days |
| Zhou R [38] | 2015 | February 2011 to January 2013 | Unilateral group, 68.8 ± 5.1; bilateral group, 70.6 ± 4.8 | 79 (41/38) | 46/33 | VAS, surgery time, injected cement volume, cement leakage | 1 year |