PMID- 37488399 OWN - NLM STAT- MEDLINE DCOM- 20230905 LR - 20231012 IS - 0942-0940 (Electronic) IS - 0001-6268 (Linking) VI - 165 IP - 9 DP - 2023 Sep TI - Time to achievement of minimum clinically important difference after lumbar decompression. PG - 2625-2631 LID - 10.1007/s00701-023-05709-0 [doi] AB - OBJECTIVE: The objective of this study is to examine factors associated with delayed time to achieve minimum clinically important difference (MCID) in patients undergoing lumbar decompression (LD) for the Patient-Reported Outcomes (PROs) of Oswestry Disability Index (ODI), Visual Analog Scale (VAS) back, and VAS leg pain. METHODS: Patients undergoing LD with preoperative and postoperative ODI, VAS back, and VAS leg scores were retrospectively reviewed from April 2016 to January 2021. MCID values from previously established studies were utilized to determine MCID achievement. Kaplan-Meier survival analysis determined the time to achieve MCID. Hazard ratios from multivariable Cox regression were utilized to determine the preoperative factors predictive of MCID achievement. RESULTS: Three-hundred and forty-three patients were identified undergoing LD. Overall MCID achievement rates were 67.4% for ODI, 67.1% for VAS back, and 65.0% for VAS leg. The mean time in weeks for MCID achievement was 22.52 +/- 30.48 for ODI, 18.90 +/- 27.43 for VAS back, and 20.96 +/- 29.81 for VAS leg. Multivariable Cox regression revealed active smoker status, preoperative Patient-Reported Outcomes Measurement Information System Physical Function (PROMIS-PF), ODI, VAS Back, and VAS Leg (HR 1.03-2.14) as predictors of early MCID achievement, whereas an American Society of Anesthesiologist (ASA) classification of 2, Black ethnicity, workers' compensation, private insurance, and diagnosis of foraminal stenosis were predictors of late MCID achievement (HR 0.34-0.58). CONCLUSION: Most patients undergoing LD achieved MCID within 6 months of surgery. Significant factors for early MCID achievement were active smoking status and baseline PROs. Significant factors for late MCID achievement were ASA = 2, Black ethnicity, type of insurance, and foraminal stenosis diagnosis. These factors may be considered by surgeons in setting patient expectations. CI - (c) 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature. FAU - Nie, James W AU - Nie JW AUID- ORCID: 0000-0002-6680-009X AD - Department of Orthopaedic Surgery, Rush University Medical Center, 1611 W. Harrison St. Suite #300, Chicago, IL, 60612, USA. FAU - Federico, Vincent P AU - Federico VP AUID- ORCID: 0000-0003-3749-9282 AD - Department of Orthopaedic Surgery, Rush University Medical Center, 1611 W. Harrison St. Suite #300, Chicago, IL, 60612, USA. FAU - Hartman, Timothy J AU - Hartman TJ AUID- ORCID: 0000-0003-3937-3480 AD - Department of Orthopaedic Surgery, Rush University Medical Center, 1611 W. Harrison St. Suite #300, Chicago, IL, 60612, USA. FAU - Zheng, Eileen AU - Zheng E AUID- ORCID: 0000-0002-2444-6790 AD - Department of Orthopaedic Surgery, Rush University Medical Center, 1611 W. Harrison St. Suite #300, Chicago, IL, 60612, USA. FAU - Oyetayo, Omolabake O AU - Oyetayo OO AUID- ORCID: 0000-0002-6098-7121 AD - Department of Orthopaedic Surgery, Rush University Medical Center, 1611 W. Harrison St. Suite #300, Chicago, IL, 60612, USA. FAU - MacGregor, Keith R AU - MacGregor KR AUID- ORCID: 0000-0003-4557-828X AD - Department of Orthopaedic Surgery, Rush University Medical Center, 1611 W. Harrison St. Suite #300, Chicago, IL, 60612, USA. FAU - Massel, Dustin H AU - Massel DH AUID- ORCID: 0000-0002-8147-5555 AD - Department of Orthopaedic Surgery, Rush University Medical Center, 1611 W. Harrison St. Suite #300, Chicago, IL, 60612, USA. FAU - Sayari, Arash J AU - Sayari AJ AUID- ORCID: 0000-0001-6450-2438 AD - Department of Orthopaedic Surgery, Rush University Medical Center, 1611 W. Harrison St. Suite #300, Chicago, IL, 60612, USA. FAU - Singh, Kern AU - Singh K AUID- ORCID: 0000-0002-6118-7273 AD - Department of Orthopaedic Surgery, Rush University Medical Center, 1611 W. Harrison St. Suite #300, Chicago, IL, 60612, USA. kern.singh@rushortho.com. LA - eng PT - Journal Article DEP - 20230724 PL - Austria TA - Acta Neurochir (Wien) JT - Acta neurochirurgica JID - 0151000 SB - IM MH - Humans MH - Treatment Outcome MH - Retrospective Studies MH - Constriction, Pathologic MH - *Pain MH - *Spinal Fusion MH - Lumbar Vertebrae/surgery MH - Decompression OTO - NOTNLM OT - Lumbar decompression OT - Minimum clinically important difference OT - Patient-reported outcomes EDAT- 2023/07/25 01:09 MHDA- 2023/09/05 06:42 CRDT- 2023/07/24 23:33 PHST- 2023/04/28 00:00 [received] PHST- 2023/06/29 00:00 [accepted] PHST- 2023/09/05 06:42 [medline] PHST- 2023/07/25 01:09 [pubmed] PHST- 2023/07/24 23:33 [entrez] AID - 10.1007/s00701-023-05709-0 [pii] AID - 10.1007/s00701-023-05709-0 [doi] PST - ppublish SO - Acta Neurochir (Wien). 2023 Sep;165(9):2625-2631. doi: 10.1007/s00701-023-05709-0. Epub 2023 Jul 24.