Table 1. Characteristics of included studies on posterior long-segment fixation for degenerative lumbar scoliosis.
| Study (year) | Ref | Country | Design | UT vs LT | Quantity score | ||
|---|---|---|---|---|---|---|---|
| Number | Age | Fusion level | |||||
| Cho KJ (2013) | 13 | Korea | Retrospective | 22/29 | 64.6/64.6 | T9-T10/T11-T12 | 6 |
| Fujimori T (2014) | 14 | Japan | Retrospective | 31/49 | 60/62 | T1-T6/T7-T12 | 6 |
| Ha Y (2013) | 15 | USA | Retrospective | 22/67 | 64.1/64.2 | T2-T5/T9-L1 | 7 |
| Kim HJ (2014) | 6 | USA | Retrospective | 91/107 | 60.9/62 | T1-T6/T9-L1 | 6 |
| Kim YJ (2007) | 7 | USA | Retrospective | 37/49 | 51.9/57.4 | T9-T10/T10-T11 | 7 |
| O'Shaughnessy BA (2012) | 5 | USA | Retrospective | 20/38 | 55.4/55.9 | T2-T5/T9-T12 | 8 |
| Scheer JK (2015) | 16 | USA | Retrospective | 81/84 | 60.3/59.6 | T1-T6/T9-L1 | 5 |
| Sciubba DM (2015) | 17 | USA | Retrospective | 64/70 | 60.4/62 | T1-T6/T9-L1 | 6 |
| Yagi M (2013) | 18 | Japan | Retrospective | 17/15 | 48.7/53.7 | T1-T6/T8-T12 | 7 |
| Zhu Y (2015) | 19 | China | Retrospective | 22/33 | 56.2/59.4 | T9-T10/T11-T12 | 6 |
UT: upper thoracic spine; LT: lower thoracic spine.