PMID- 32409888 OWN - NLM STAT- MEDLINE DCOM- 20210611 LR - 20210611 IS - 1432-0932 (Electronic) IS - 0940-6719 (Linking) VI - 29 IP - 9 DP - 2020 Sep TI - Two-year outcome comparison of decompression in 14 lipomatosis cases with 169 degenerative lumbar spinal stenosis cases: a Swiss prospective multicenter cohort study. PG - 2243-2253 LID - 10.1007/s00586-020-06449-w [doi] AB - PURPOSE: Spinal epidural lipomatosis (SEL) is defined as an abnormal and extensive accumulation of unencapsulated adipose tissue within the spinal epidural space. To date, there is a lack of high-level evidence studies reporting the outcome of surgical treatment of symptomatic SEL in patients with lumbar spinal stenosis (LSS). The aim was to compare clinical outcomes in patients with symptomatic LSS with and without SEL who underwent decompression surgery alone at the 12- and 24-month follow-up. METHODS: One hundred and eighty-three patients met the inclusion criteria, of which 14 had mainly SEL on at least one level operated in addition to possible degenerative changes on other levels and 169 degenerative LSS only. The main outcomes were pain (Spinal Stenosis Measure (SSM) symptoms), disability (SSM function), and quality of life [EQ-5D-3L summary index (SI)] at 24-month follow-up, and minimal clinically important difference (MCID) in SSM symptoms, SSM function, and EQ-5D-3L SI. RESULTS: The multiple regression linear models showed that SEL was associated with worse SSM symptoms (p = 0.045) and EQ-5D-3L SI scores (p = 0.026) at 24-month follow-up, but not with worse SSM function scores. Further, depression (in all models) was negatively associated with better clinical outcomes at 24-month follow-up. In the outcomes SSM symptoms and EQ-5D-3L SI, distinctly more patients in the classical LSS group reached MCID than in the SEL group (71.3% and 62.3% vs. 50.0% and 42.9%). CONCLUSIONS: Our study demonstrated that decompression alone surgery was associated with significant improvement in disability in both groups at 2 years, but not in pain and quality of life in patients with SEL. FAU - Ulrich, Nils H AU - Ulrich NH AD - Horten Centre for Patient Oriented Research and Knowledge Transfer, University of Zurich, Zurich, Switzerland. nils.ulrich@balgrist.ch. AD - University Spine Centre Zurich, Balgrist University Hospital, University of Zurich, Zurich, Switzerland. nils.ulrich@balgrist.ch. FAU - Gravestock, Isaac AU - Gravestock I AD - Horten Centre for Patient Oriented Research and Knowledge Transfer, University of Zurich, Zurich, Switzerland. FAU - Winklhofer, Sebastian AU - Winklhofer S AD - Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland. FAU - Peyneshki, Iliya AU - Peyneshki I AD - Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland. FAU - Wertli, Maria M AU - Wertli MM AD - Horten Centre for Patient Oriented Research and Knowledge Transfer, University of Zurich, Zurich, Switzerland. AD - Division of General Internal Medicine, Bern University Hospital, Bern University, Bern, Switzerland. FAU - Pichierri, Giuseppe AU - Pichierri G AD - Horten Centre for Patient Oriented Research and Knowledge Transfer, University of Zurich, Zurich, Switzerland. AD - Institute for Primary Care, University and University Hospital Zurich, Zurich, Switzerland. FAU - Fekete, Tamas F AU - Fekete TF AD - Department of Orthopedics and Neurosurgery, Spine Center, Schulthess Clinic, Zurich, Switzerland. FAU - Porchet, Francois AU - Porchet F AD - Department of Orthopedics and Neurosurgery, Spine Center, Schulthess Clinic, Zurich, Switzerland. FAU - Farshad, Mazda AU - Farshad M AD - University Spine Centre Zurich, Balgrist University Hospital, University of Zurich, Zurich, Switzerland. FAU - Steurer, Johann AU - Steurer J AD - Horten Centre for Patient Oriented Research and Knowledge Transfer, University of Zurich, Zurich, Switzerland. FAU - Burgstaller, Jakob M AU - Burgstaller JM AD - Horten Centre for Patient Oriented Research and Knowledge Transfer, University of Zurich, Zurich, Switzerland. AD - Institute for Primary Care, University and University Hospital Zurich, Zurich, Switzerland. CN - LSOS Study Group LA - eng PT - Journal Article PT - Multicenter Study DEP - 20200514 PL - Germany TA - Eur Spine J JT - European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society JID - 9301980 SB - IM MH - Decompression, Surgical MH - Humans MH - *Lipomatosis/surgery MH - Lumbar Vertebrae/surgery MH - Prospective Studies MH - Quality of Life MH - *Spinal Stenosis/surgery MH - Switzerland MH - Treatment Outcome OTO - NOTNLM OT - Lipomatosis OT - Lumbar spine OT - Spinal epidural lipomatosis OT - Stenosis OT - Surgical decompression EDAT- 2020/05/16 06:00 MHDA- 2021/06/12 06:00 CRDT- 2020/05/16 06:00 PHST- 2020/01/22 00:00 [received] PHST- 2020/05/02 00:00 [accepted] PHST- 2020/04/09 00:00 [revised] PHST- 2020/05/16 06:00 [pubmed] PHST- 2021/06/12 06:00 [medline] PHST- 2020/05/16 06:00 [entrez] AID - 10.1007/s00586-020-06449-w [pii] AID - 10.1007/s00586-020-06449-w [doi] PST - ppublish SO - Eur Spine J. 2020 Sep;29(9):2243-2253. doi: 10.1007/s00586-020-06449-w. Epub 2020 May 14.