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Study Design: Retrospective review.
Objective: This study aims to compare postoperative patient-reported outcome measures (PROMs) in predominant back pain (PBP) versus predominant leg pain (PLP) patients following lumbar fusion for degenerative spondylolisthesis (DS).
Summary Of Background Data: Prior studies comparing PROMs in patients undergoing lumbar fusion with PBP versus PLP symptoms have included heterogeneous spinal pathology and restricted analysis to posterior fusion techniques.
Methods: Demographics, perioperative characteristics, complications, and PROMs from a retrospective single-surgeon database were collected for primary, elective, and single-level lumbar fusion for DS. Preoperative/postoperative PROMs included visual analog scale (VAS)-back/leg pain (VAS-BP/VAS-LP), Oswestry disability index (ODI), 12-Item Short Form Physical and Mental Composite Score (SF-12 PCS/MCS), and Patient-Reported Outcome Measurement Information System-Physical Function (PROMIS-PF). Preoperative VAS-BP>VAS-LP established the PBP cohort and VAS-LP>VAS-BP established the PLP cohort. The average follow-up was 23.4±2.8 months. Improvement in PROMs (ΔPROM) at 6 weeks (ΔPROM-6W) and final follow-up (ΔPROM-FF) were calculated. χ2 and the Student t test analyzed categorical and continuous variables, respectively. Postoperative PROMs, ΔPROMs, and MCID achievement rates were compared between groups with multivariate linear or logistic regression.
Results: In total, 166 patients were selected with 108 in the PBP cohort. Both cohorts saw improvements in all PROM scores over time. The PBP cohort reported significantly greater ΔPROM-6W and ΔPROM-FF for VAS-BP (P<0.003). The PLP cohort reported greater ΔPROM-6W and ΔPROM-FF for VAS-LP and ΔPROM-FF for SF-12 PCS (P<0.014). MCID achievement rates for VAS-BP were higher in the PBP cohort, and VAS-LP MCID achievement rates were higher in the PLP cohort (P<0.015).
Conclusion: Regardless of predominant pain location, patients-reported improvements in all PROs at the final follow-up. Patients with PLP-reported greater improvement in leg pain and physical function and patients with PBP-reported greater back pain improvement.
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Source |
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http://dx.doi.org/10.1097/BSD.0000000000001705 | DOI Listing |
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