Poor muscle health and low preoperative ODI are independent predictors for slower achievement of MCID after minimally invasive decompression.

Autor: Singh S; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA., Shahi P; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA., Asada T; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA., Kaidi A; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA., Subramanian T; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA; Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA., Zhao E; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA; Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA., Kim AYE; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA; Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA., Maayan O; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA; Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA., Araghi K; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA., Singh N; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA., Tuma O; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA., Korsun M; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA., Kamil R; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA., Sheha E; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA., Dowdell J; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA., Qureshi S; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA; Weill Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA., Iyer S; Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA. Electronic address: sravisht@gmail.com.
Jazyk: angličtina
Zdroj: The spine journal : official journal of the North American Spine Society [Spine J] 2023 Aug; Vol. 23 (8), pp. 1152-1160. Date of Electronic Publication: 2023 Apr 12.
DOI: 10.1016/j.spinee.2023.04.004
Abstrakt: Background Context: Although some previous studies have analyzed predictors of nonimprovement, most of these have focused on demographic and clinical variables and have not accounted for radiological predictors. In addition, while several studies have examined the degree of improvement after decompression, there is less data on the rate of improvement.
Purpose: To identify the risk factors and predictors (both radiological and nonradiological) for slower as well as nonachievement of minimal clinically important difference (MCID) after minimally invasive decompression.
Design: Retrospective cohort.
Patient Sample: Patients who underwent minimally invasive decompression for degenerative lumbar spine conditions and had a minimum of 1-year follow up were included. Patients with preoperative Oswestry Disability Index (ODI) <20 were excluded.
Outcome Measure: MCID achievement in ODI (cut off 12.8).
Methods: Patients were stratified into two groups (achieved MCID, did not achieve MCID) at two timepoints (early ≤3 months, late ≥6 months). Nonradiological (age, gender, BMI, comorbidities, anxiety, depression, number of levels operated, preoperative ODI, preoperative back pain) and radiological (MRI - Schizas grading for stenosis, dural sac cross-sectional area, Pfirrmann grading for disc degeneration, psoas cross-sectional area and Goutallier grading, facet cyst/effusion; X-ray - spondylolisthesis, lumbar lordosis, spinopelvic parameters) variables were assessed with comparative analysis to identify risk factors and with multiple regression models to identify predictors for slower achievement of MCID (MCID not achieved by ≤3 months) and nonachievement of MCID (MCID not achieved at ≥6 months).
Results: A total of 338 patients were included. At ≤3 months, patients who did not achieve MCID had significantly lower preoperative ODI (40.1 vs 48.1, p<0.001) and worse psoas Goutallier grading (p=.048). At ≥6 months, patients who did not achieve MCID had significantly lower preoperative ODI (38 vs 47.5, p<.001), higher age (68 vs 63 years, p=.007), worse average L1-S1 Pfirrmann grading (3.5 vs 3.2, p=.035), and higher rate of pre-existing spondylolisthesis at the operated level (p=.047). When these and other probable risk factors were put into a regression model, low preoperative ODI (p=.002) and poor Goutallier grading (p=.042) at the early timepoint and low preoperative ODI (p<.001) at the late timepoint came out as independent predictors for MCID nonachievement.
Conclusion: After minimally invasive decompression, low preoperative ODI and poor muscle health are risk factors and predictors for slower achievement of MCID. For nonachievement of MCID, low preoperative ODI, higher age, greater disc degeneration, and spondylolisthesis are risk factors and low preoperative ODI is the only independent predictor.
Competing Interests: Declaration of competing interest One or more of the authors declare financial or professional relationships on ICMJE-TSJ disclosure forms.
(Copyright © 2023 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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