Funao H, Kebaish FN, Skolasky RL, et al. - This study was undertaken to investigate the outcomes of revision surgery for symptomatic proximal junctional kyphosis (PJK) in patients with adult spinal deformity and elucidate the incidence and risk factors for recurrent PJK (rePJK). Researchers assessed standing radiographs and health-related quality of life (HRQOL) in patients who underwent revision surgery for symptomatic PJK with at least 2-year follow-up. Individuals were allocated to the non-rePJK or rePJK group according to PJK recurrence. The study included a total of 39 consecutive patients (mean age, 63 ± 11 years; 24 women). It was shown that the incidence of rePJK was 31%. According to the findings, the risk factors for rePJK were large initial PJA, high preoperative TK and SVA, and greater correction of TK and SVA. The findings revealed that HRQOL did not differ significantly between patients with vs without rePJK, except immediate postoperative SRS-22r activity scores.