Fig. 1From: Comparison of smith-petersen osteotomy, pedicular subtraction osteotomy, and poly-segmental wedge osteotomy in treating rigid thoracolumbar kyphotic deformity in ankylosing spondylitis a systematic review and meta-analysisFlowchart of search strategy and results. Information: 9 articles were filtered out from 116 original literaturesBack to article page