{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T14:00:17Z","timestamp":1790344817637,"version":"4.1.0"},"reference-count":34,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Back and Musculoskeletal Rehabilitation"],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Pelvic incidence\u2013lumbar lordosis (PI\u2013LL) mismatch is associated with adverse outcomes in spinal deformity, but its relevance in nonspecific low back pain (LBP) is unclear.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To assess whether PI\u2013LL mismatch is associated with pain, disability, symptom duration and structural findings in nonspecific LBP.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In this retrospective cross-sectional study, consecutive patients aged 30\u201365 years with conservatively managed nonspecific LBP \u22654 weeks and lumbar magnetic resonance imaging plus standing lateral radiography from May 2022 to May 2023 were identified from hospital records and assessed at a single standardized visit between May 2023 and February 2024. Pelvic incidence and L1\u2013S1 lordosis were measured; mismatch was defined as \u226510\u00b0. Pain (visual analogue scale, VAS), disability (Oswestry Disability Index, ODI), facet tropism (facet angle asymmetry &gt;7\u00b0), and Goutallier-graded paraspinal fatty infiltration were assessed. Groups were compared with parametric and non-parametric tests and multivariable linear regression; the sample could detect d\u2009=\u20090.55 (80% power, \u03b1\u2009=\u20090.05).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Of 105 patients, 51 had a mismatch. VAS, symptom duration and ODI were higher in the mismatch group. After adjustment, a mismatch remained independently associated with higher VAS and longer duration, but not with ODI. Facet tropism was more prevalent at L4\u20135 and L5\u2013S1, and multifidus fatty infiltration was higher at L2\u20133.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>In conservatively managed nonspecific LBP, PI\u2013LL mismatch was independently associated with greater pain and longer symptom duration and co-occurred with segment-specific structural changes. Prospective studies are needed to establish its prognostic values.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/10538127261490651","type":"journal-article","created":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T13:17:50Z","timestamp":1789996670000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Pelvic incidence\u2013lumbar lordosis mismatch in non-specific low back pain: Associations with pain, disability and lumbar structural findings \u2014 A retrospective cross-sectional study"],"prefix":"10.1177","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3398-6844","authenticated-orcid":false,"given":"Ertan","family":"Yilmaz","sequence":"first","affiliation":[{"name":"Tekirda\u011f Nam\u0131k Kemal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4119-7706","authenticated-orcid":false,"given":"Kubra","family":"Ustaomer","sequence":"additional","affiliation":[{"name":"Tekirda\u011f Nam\u0131k Kemal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8163-9815","authenticated-orcid":false,"given":"Cihan","family":"Ozgur","sequence":"additional","affiliation":[{"name":"Tekirda\u011f Nam\u0131k Kemal University, Tekirdag"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0771-2505","authenticated-orcid":false,"given":"Birol","family":"Topcu","sequence":"additional","affiliation":[{"name":"Tekirda\u011f Nam\u0131k Kemal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2819-3233","authenticated-orcid":false,"given":"Banu","family":"Sarifakioglu","sequence":"additional","affiliation":[{"name":"Tekirda\u011f Nam\u0131k Kemal University"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,9,21]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(20)30925-9"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1136\/aim.22.4.178"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e3181a13c08"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-006-0090-3"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/s43390-023-00766-y"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nec.2018.03.003"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e318292b7b9"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1227\/NEU.0000000000000012"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-010-1476-9"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e31823e15e2"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.22603\/ssrr.2019-0017"},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jor.2018.12.008"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-199208000-00007"},{"key":"e_1_3_3_15_2","doi-asserted-by":"publisher","DOI":"10.1111\/papr.13302"},{"key":"e_1_3_3_16_2","doi-asserted-by":"publisher","DOI":"10.3389\/fsurg.2023.1111024"},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.1080\/02688697.2020.1783434"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1002\/nur.4770130405"},{"key":"e_1_3_3_19_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.BRS.0000113869.13209.03"},{"key":"e_1_3_3_20_2","doi-asserted-by":"publisher","DOI":"10.3233\/BMR-2012-00349"},{"key":"e_1_3_3_21_2","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0000000000000022"},{"key":"e_1_3_3_22_2","doi-asserted-by":"crossref","unstructured":"Goutallier D Postel JM Bernageau J et al. 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