dc.contributor.author | Gille, O | |
dc.contributor.author | Bouloussa, H | |
dc.contributor.author | Mazas, S | |
dc.contributor.author | Vergari, C | |
dc.contributor.author | Challier, V | |
dc.contributor.author | Vital, J-M | |
dc.contributor.author | Coudert, P | |
dc.contributor.author | Ghailane, S | |
dc.date.accessioned | 2017-09-15T11:38:10Z | |
dc.date.issued | 2017-08-23 | |
dc.description.abstract | PURPOSE: There is no consensus for a comprehensive analysis of degenerative spondylolisthesis of the lumbar spine (DSLS). A new classification system for DSLS based on sagittal alignment was proposed. Its clinical relevance was explored. METHODS: Health-related quality-of-life scales (HRQOLs) and clinical parameters were collected: SF-12, ODI, and low back and leg pain visual analog scales (BP-VAS, LP-VAS). Radiographic analysis included Meyerding grading and sagittal parameters: segmental lordosis (SL), L1-S1 lumbar lordosis (LL), T1-T12 thoracic kyphosis (TK), pelvic incidence (PI), pelvic tilt (PT), and sagittal vertical axis (SVA). Patients were classified according to three main types-1A: preserved LL and SL; 1B: preserved LL and reduced SL (≤5°); 2A: PI-LL ≥10° without pelvic compensation (PT < 25°); 2B: PI-LL ≥10° with pelvic compensation (PT ≥ 25°); type 3: global sagittal malalignment (SVA ≥40 mm). RESULTS: 166 patients (119 F: 47 M) suffering from DSLS were included. Mean age was 67.1 ± 11 years. DSLS demographics were, respectively: type 1A: 73 patients, type 1B: 3, type 2A: 8, type 2B: 22, and type 3: 60. Meyerding grading was: grade 1 (n = 124); grade 2 (n = 24). Affected levels were: L4-L5 (n = 121), L3-L4 (n = 34), L2-L3 (n = 6), and L5-S1 (n = 5). Mean sagittal parameter values were: PI: 59.3° ± 11.9°; PT: 24.3° ± 7.6°; SVA: 29.1 ± 42.2 mm; SL: 18.2° ± 8.1°. DSLS types were correlated with age, ODI and SF-12 PCS (ρ = 0.34, p < 0.05; ρ = 0.33, p < 0.05; ρ = -0.20, and p = 0.01, respectively). CONCLUSION: This classification was consistent with age and HRQOLs and could be a preoperative assessment tool. Its therapeutic impact has yet to be validated. LEVEL OF EVIDENCE: 4. | en_GB |
dc.description.sponsorship | No funds were received in support of this work. No benefits in any forms have been or will be received from a commercial party related directly or indirectly to the subject of this manuscript. | en_GB |
dc.identifier.citation | Published online 23 August 2017 | en_GB |
dc.identifier.doi | 10.1007/s00586-017-5275-4 | |
dc.identifier.uri | http://hdl.handle.net/10871/29361 | |
dc.language.iso | en | en_GB |
dc.publisher | Springer Verlag for EuroSpine | en_GB |
dc.relation.url | https://www.ncbi.nlm.nih.gov/pubmed/28836019 | en_GB |
dc.rights.embargoreason | Publisher policy | en_GB |
dc.rights | © Springer-Verlag GmbH Germany 2017 | en_GB |
dc.subject | Classification system | en_GB |
dc.subject | Clinical relevance | en_GB |
dc.subject | Degenerative spondylolisthesis | en_GB |
dc.subject | Lumbar spine | en_GB |
dc.subject | Spondylolisthesis | en_GB |
dc.title | A new classification system for degenerative spondylolisthesis of the lumbar spine | en_GB |
dc.type | Article | en_GB |
exeter.place-of-publication | Germany | en_GB |
dc.description | This is the author accepted manuscript. The final version is available from Springer Verlag via the DOI in this record. | en_GB |
dc.identifier.journal | European Spine Journal | en_GB |