{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,4]],"date-time":"2026-11-04T21:13:28Z","timestamp":1793826808035,"version":"4.6.1"},"reference-count":32,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,9,1]]},"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVE<\/jats:title>\n                    <jats:p>The paraspinal muscles play an essential role in the stabilization of the lumbar spine. Lumbar paraspinal muscle atrophy has been linked to chronic back pain and degenerative processes within the spinal motion segment. However, the relationship between the different paraspinal muscle groups and facet joint osteoarthritis (FJOA) has not been fully explored.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>In this cross-sectional study, the authors analyzed adult patients who underwent lumbar spinal surgery between December 2014 and March 2023 for degenerative spinal conditions and had preoperative MRI and CT scans. The fatty infiltration (FI) and functional cross-sectional area (fCSA) of the psoas, erector spinae, and multifidus muscles were assessed on axial T2-weighted MR images at the level of the upper endplate of L4 based on established studies and calculated using custom-made software. Intervertebral disc degeneration at each lumbar level was evaluated using the Pfirrmann grading system. The grades from each level were summed to report the cumulative lumbar Pfirrmann grade. Weishaupt classification (0\u20133) was used to assess FJOA at all lumbar levels (L1 to S1) on preoperative CT scans. The total lumbar FJOA score was determined by adding the Weishaupt grades of both sides at all 5 levels. Correlation and linear regression analyses were conducted to assess the relationship between FJOA and paraspinal muscle parameters.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>\n                      A total of 225 patients (49.7% female) with a median age of 61 (IQR 54\u201370) years and a median BMI of 28.3 (IQR 25.1\u201333.1) kg\/m\n                      <jats:sup>2<\/jats:sup>\n                      were included. After adjustment for age, sex, BMI, and the cumulative lumbar Pfirrmann grade, only multifidus muscle fCSA (estimate \u22124.69, 95% CI \u22126.91 to \u22122.46; p &lt; 0.001) and FI (estimate 0.64, 95% CI 0.33\u20130.94; p &lt; 0.001) were independently predicted by the total FJOA score. A similar relation was seen with individual Weishaupt grades of each lumbar level after controlling for age, sex, BMI, and the Pfirrmann grade of the corresponding level.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>Atrophy of the multifidus muscle is significantly associated with FJOA in the lumbar spine. The absence of such correlation for the erector spinae and psoas muscles highlights the unique link between multifidus muscle quality and the degeneration of the spinal motion segment. Further research is necessary to establish the causal link and the clinical implications of these findings.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/2024.4.spine231018","type":"journal-article","created":{"date-parts":[[2024,6,14]],"date-time":"2024-06-14T21:51:17Z","timestamp":1718401877000},"page":"360-368","source":"Crossref","is-referenced-by-count":23,"title":["Relationship between facet joint osteoarthritis and lumbar paraspinal muscle atrophy: a cross-sectional study"],"prefix":"10.3171","volume":"41","author":[{"given":"Ali E.","family":"Guven","sequence":"first","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lukas","family":"Sch\u00f6nnagel","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"},{"name":"Center for Musculoskeletal Surgery, Charit\u00e9\u2014Berlin University Medicine, Berlin, Germany;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gaston","family":"Camino-Willhuber","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erika","family":"Chiapparelli","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Krizia","family":"Amoroso","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaqi","family":"Zhu","sequence":"additional","affiliation":[{"name":"Biostatistics Core, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Soji","family":"Tani","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"},{"name":"Department of Orthopaedic Surgery, School of Medicine, Showa University Hospital, Tokyo, Japan;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Caffard","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"},{"name":"Department of Orthopedic Surgery, University of Ulm, Baden-W\u00fcrttemberg, Germany; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Artine","family":"Arzani","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arman T.","family":"Zadeh","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jennifer","family":"Shue","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ek Tsoon","family":"Tan","sequence":"additional","affiliation":[{"name":"Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew A.","family":"Sama","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Federico P.","family":"Girardi","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frank P.","family":"Cammisa","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander P.","family":"Hughes","sequence":"additional","affiliation":[{"name":"Spine Care Institute, Hospital for Special Surgery, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"23","key":"b1","series-title":"Spine (Phila Pa 1976)","first-page":"2560","article-title":"Facet joint osteoarthritis and low back pain in the community-based population","volume":"33","author":"Kalichman L","year":"2008","unstructured":"Kalichman L, Li L, Kim DH,  Facet joint osteoarthritis and low back pain in the community-based population. 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