Abstract summary 

Prospective cohort.To prospectively evaluate PROs up to 5-years after complex ASD surgery.The Scoli-RISK-1 study enrolled 272 ASD patients undergoing surgery from 15 centers. Inclusion criteria was Cobb angle of >80°, corrective osteotomy for congenital or revision deformity, and/or 3-column osteotomy. The following PROs were measured prospectively at intervals up to 5-years postoperative: ODI, SF36-PCS/MCS, SRS-22, NRS back/leg. Among patients with 5-year follow-up, comparisons were made from both baseline and 2-years postoperative to 5-years postoperative. PROs were analyzed using mixed models for repeated measures.Seventy-seven patients (28.3%) had 5-year follow-up data. Comparing baseline to 5-year data among these 77 patients, significant improvement was seen in all PROs: ODI (45.2 vs. 29.3, < 0.001), SF36-PCS (31.5 vs. 38.8, < 0.001), SF36-MCS (44.9 vs. 49.1, = 0.009), SRS-22-total (2.78 vs. 3.61, < 0.001), NRS-back pain (5.70 vs. 2.95, < 0.001) and NRS leg pain (3.64 vs. 2.62, = 0.017). In the 2 to 5-year follow-up period, no significant changes were seen in any PROs. The percentage of patients achieving MCID from baseline to 5-years were: ODI (62.0%) and the SRS-22r domains of function (70.4%), pain (63.0%), mental health (37.5%), self-image (60.3%), and total (60.3%). Surprisingly, mean values ( > 0.05) and proportion achieving MCID did not differ significantly in patients with major surgery-related complications compared to those without.After complex ASD surgery, significant improvement in PROs were seen at 5-years postoperative in ODI, SF36-PCS/MCS, SRS-22r, and NRS-back/leg pain. No significant changes in PROs occurred during the 2 to 5-year postoperative period. Those with major surgery-related complications had similar PROs and proportion of patients achieving MCID as those without these complications.

Authors & Co-authors:  Zuckerman Scott L SL Cerpa Meghan M Lenke Lawrence G LG Shaffrey Christopher I CI Carreon Leah Y LY Cheung Kenneth M C KMC Kelly Michael P MP Fehlings Michael G MG Ames Christopher P CP Boachie-Adjei Oheneba O Dekutoski Mark B MB Kabeaish Khaled M KM Lewis Stephen J SJ Matsuyama Yukihiro Y Pellisé Ferran F Qiu Yong Y Schwab Frank J FJ Smith Justin S JS

Study Outcome 

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