PMID- 33464551 OWN - NLM STAT- MEDLINE DCOM- 20211118 LR - 20211118 IS - 2212-1358 (Electronic) IS - 2212-134X (Linking) VI - 9 IP - 4 DP - 2021 Jul TI - How is staging of ALIF following posterior spinal arthrodesis to the pelvis related to functional improvement in patients with adult spinal deformity? PG - 1085-1091 LID - 10.1007/s43390-020-00272-5 [doi] AB - STUDY DESIGN: Retrospective cohort. OBJECTIVES: To compare postoperative functional improvement in patients who underwent staged versus non-staged anterior-posterior spinal arthrodesis for adult spinal deformity (ASD). In patients with ASD, spinal arthrodesis can be performed in 2 stages to avoid the physiologic insult of a lengthy surgery. The association between staged surgery and postoperative functional improvement has not been well studied. METHODS: We included 87 patients (59 women) with ASD who underwent anterior-posterior spinal arthrodesis of > 5 levels with fixation to the pelvis from 2010-2014. Primary outcomes were the frequency of achieving at least a minimal clinically important difference (MCID) in the Scoliosis Research Society-22r (SRS-22r) Activity domain and the timeframe in which it was achieved. The secondary outcome was patient satisfaction (SRS-22r Patient Satisfaction domain). A Cox proportional hazard model was used to compare functional improvement over time between staged and non-staged groups. Our study was powered to detect a relative hazard ratio of 0.53, beta = 0.20. alpha = 0.05. RESULTS: The frequency of achieving an MCID in SRS-22r Activity score did not differ significantly between the staged group (33/41 patients) and the non-staged group (34/46 patients) (hazard ratio 0.74; 95% confidence interval 0.41-1.36). Median times to achieving an MCID in SRS-22r Activity score were 191 days (interquartile range: 86-674) in the staged group and 181 days (interquartile range: 72-474) in the non-staged group (p = .75). The staged and non-staged groups had similar SRS-22r Patient Satisfaction scores at 3-9 months postoperatively and at final follow-up (both, p > .05). CONCLUSION: Patients with ASD who underwent staged anterior-posterior spinal arthrodesis within 3 months after index surgery were similarly likely to experience functional improvement in the same timeframe as patients who underwent non-staged surgery. Patient satisfaction did not differ significantly between staged and non-staged groups. LEVEL OF EVIDENCE: III. CI - (c) 2021. Scoliosis Research Society. FAU - Harris, Andrew B AU - Harris AB AD - Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA. FAU - Puvanesarajah, Varun AU - Puvanesarajah V AD - Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA. FAU - Raad, Micheal AU - Raad M AD - Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA. FAU - Marrache, Majd AU - Marrache M AD - Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA. FAU - Ren, Mark AU - Ren M AD - Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA. FAU - Skolasky, Richard L AU - Skolasky RL AD - Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA. FAU - Kebaish, Khaled M AU - Kebaish KM AD - Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA. FAU - Neuman, Brian J AU - Neuman BJ AD - Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA. bneuman7@jhmi.edu. LA - eng PT - Journal Article DEP - 20210119 PL - England TA - Spine Deform JT - Spine deformity JID - 101603979 SB - IM MH - Adult MH - Female MH - Humans MH - Pelvis MH - Quality of Life MH - Retrospective Studies MH - *Scoliosis/surgery MH - *Spinal Fusion OTO - NOTNLM OT - Adult spinal deformity OT - Functional improvement OT - Quality of life OT - Satisfaction OT - Scoliosis OT - Staged spinal arthrodesis. EDAT- 2021/01/20 06:00 MHDA- 2021/11/19 06:00 CRDT- 2021/01/19 12:17 PHST- 2020/04/14 00:00 [received] PHST- 2020/12/14 00:00 [accepted] PHST- 2021/01/20 06:00 [pubmed] PHST- 2021/11/19 06:00 [medline] PHST- 2021/01/19 12:17 [entrez] AID - 10.1007/s43390-020-00272-5 [pii] AID - 10.1007/s43390-020-00272-5 [doi] PST - ppublish SO - Spine Deform. 2021 Jul;9(4):1085-1091. doi: 10.1007/s43390-020-00272-5. Epub 2021 Jan 19.