PMID- 28538082 OWN - NLM STAT- MEDLINE DCOM- 20190531 LR - 20190531 IS - 2380-0194 (Electronic) IS - 2380-0186 (Linking) VI - 31 IP - 1 DP - 2018 Feb TI - Risk Factors Associated With Failure to Reach Minimal Clinically Important Difference in Patient-reported Outcomes Following Minimally Invasive Transforaminal Lumbar Interbody Fusion for Spondylolisthesis. PG - E92-E97 LID - 10.1097/BSD.0000000000000543 [doi] AB - STUDY DESIGN: Retrospective cohort. OBJECTIVE: To determine risk factors associated with failure to reach the minimal clinically important difference (MCID) in patient-reported outcomes (PROs) for patients undergoing minimally invasive transforaminal lumbar interbody fusion (MIS TLIF) for spondylolisthesis. SUMMARY OF BACKGROUND DATA: The MCID of PROs are often utilized to determine the benefit of spinal procedures. However, negative predictive factors for reaching MCID in patients surgically treated for lumbar spondylolisthesis have been difficult to elucidate. MATERIALS AND METHODS: A prospectively maintained surgical database of patients who were diagnosed with lumbar spondylolisthesis and surgically treated with a single level MIS TLIF from 2010 to 2016 was reviewed. Patients with incomplete PRO survey data or <6-month follow-up were excluded from the analysis. MCID for visual analogue scale (VAS) back, VAS leg, and Oswestry Disability Index (ODI) was obtained from established values in the literature. All risk factors were then assessed for association with failure to reach MCID using bivariate and multivariate regression adjusting for preoperative characteristics. RESULTS: A total of 165, 76, and 73 patients treated with MIS TLIF for spondylolisthesis had complete PRO data for VAS back, VAS leg, and ODI, respectively, and were thus included in the analysis for the respective PRO. Overall, 75.76%, 71.05%, and 61.64% of patients treated with a single level MIS TLIF for spondylolisthesis reached MCID for VAS back, VAS leg, and ODI, respectively. On multivariate analysis, patients were less likely to achieve MCID for VAS back following surgical treatment if they received workers' compensation (P<0.001). No other measured factors were noted to independently correlate with MCID achievement. CONCLUSIONS: The results of this study suggest that a majority of patients with spondylolisthesis achieve MCID for commonly measured PROs following MIS TLIF for spondylolisthesis. However, worker's compensation insurance status may serve as a negative predictive factor for reaching MCID. FAU - Hijji, Fady Y AU - Hijji FY AD - Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL. FAU - Narain, Ankur S AU - Narain AS FAU - Bohl, Daniel D AU - Bohl DD FAU - Yom, Kelly H AU - Yom KH FAU - Kudaravalli, Krishna T AU - Kudaravalli KT FAU - Lopez, Gregory D AU - Lopez GD FAU - Singh, Kern AU - Singh K LA - eng PT - Journal Article PL - United States TA - Clin Spine Surg JT - Clinical spine surgery JID - 101675083 SB - IM MH - Adult MH - Aged MH - Disability Evaluation MH - Female MH - Humans MH - Intervertebral Disc/*surgery MH - Lumbar Vertebrae/*surgery MH - Male MH - Middle Aged MH - *Minimal Clinically Important Difference MH - *Patient Reported Outcome Measures MH - Risk Factors MH - *Spinal Fusion/adverse effects MH - Spondylolisthesis/*surgery MH - Treatment Outcome MH - Visual Analog Scale EDAT- 2017/05/26 06:00 MHDA- 2019/06/01 06:00 CRDT- 2017/05/25 06:00 PHST- 2017/05/26 06:00 [pubmed] PHST- 2019/06/01 06:00 [medline] PHST- 2017/05/25 06:00 [entrez] AID - 10.1097/BSD.0000000000000543 [doi] PST - ppublish SO - Clin Spine Surg. 2018 Feb;31(1):E92-E97. doi: 10.1097/BSD.0000000000000543.