“…Twenty-one articles were excluded from the meta-analysis of TTO because they did not include a control group ( Table 5 ) [ 5 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 ]. For reattachment osteotomy, most authors used cerclage wires [ 56 , 64 , 67 , 68 , 69 , 70 , 73 , 74 , 75 , 77 ], the second most common type of fixation were screws [ 62 , 63 , 65 , 66 , 70 , 71 , 76 ] and only two studies reported suture repair [ 72 , 78 ]. TTO approach was applied in both primary TKA, for knees with severe valgus deformity [ 69 , 73 , 76 , 77 ], patella disease [ 62 , 65 , 74 ] or revision surgery (aseptic or septic) [ 63 , 64 , 65 ,…”