• World Neurosurg · Feb 2023

    Do Patient Outcomes Predict Loss to Long-term Follow-up After Spine Surgery?

    • Hannah A Levy, Brian A Karamian, Joshua Pezzulo, Jose A Canseco, Matthew B Sherman, Mark F Kurd, Jeffrey A Rihn, Alan S Hilibrand, Christopher K Kepler, Alexander R Vaccaro, and Gregory D Schroeder.
    • Department of Orthopaedic Surgery, Rothman Orthopaedic Institute, Philadelphia, Pennsylvania, USA; Department of Orthopaedic Surgery, Mayo Clinic, Rochester, Minnesota, USA.
    • World Neurosurg. 2023 Feb 1; 170: e301e312e301-e312.

    ObjectiveTo determine if spine surgery patients with greater improvement in patient-reported outcomes measures (PROMs) at early postoperative follow-up are more likely to be lost to follow-up at the 1-year and 2-year postoperative visits.MethodsAll patients older than 18 years who underwent primary or revision decompression or fusion surgery for degenerative spinal conditions at an academic institution were retrospectively identified. Univariate analysis compared patient demographics, surgical factors, and changes in short-term and long-term postoperative PROMs (Neck Disability Index, Oswestry Disability Index, visual analog scale [VAS] neck, VAS arm, VAS back, VAS leg, and Short-Form 12 Physical and Mental Component Scores) across groups with and without 1 year and 2 years follow-up. Logistic regression isolated predictors of loss to follow-up.ResultsA total of 1412 patients were included. Younger patient age, primary surgery, and single surgical approach independently predicted loss at 1 year follow-up. Female sex predicted loss at 2 years follow-up, whereas multilevel fusion surgery predicted attendance at 2 years clinical follow-up. In patients lost at 1 year follow-up compared with those who attended, preoperative to 3-month Mental Component Score and VAS neck pain improvement was significantly greater. When comparing patients based on 2 years follow-up status, VAS back pain improvement at 1 year postoperatively was significantly greater in patients lost to 2 years follow-up. All other changes in PROMs did not differ significantly by 1 or 2 years follow-up attendance.ConclusionsOverall patient outcomes were not found to affect loss to long-term follow-up after spine surgery. The general lack of association between postoperative follow-up status and clinical outcome may limit bias introduced in retrospective PROM studies.Copyright © 2022 Elsevier Inc. All rights reserved.

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