{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T12:29:33Z","timestamp":1789475373919,"version":"build-2803163510"},"reference-count":36,"publisher":"SAGE Publications","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BMR"],"published-print":{"date-parts":[[2024,7,2]]},"abstract":"<jats:p>BACKGROUND: The factors affecting lumbar spinal function in patients with degenerative lumbar spinal stenosis (DLSS) are still unclear. OBJECTIVE: This study explored psoas major muscle morphology in patients with DLSS and its association with their functional status. METHODS: A retrospective study was conducted on 288\u00a0patients with DLSS and 260\u00a0control subjects. Psoas major muscle evaluation included three morphometric parameters at the L3\/4\u00a0disc level: psoas major index (PMI), muscle attenuation, and psoas major morphological changes (MPM). The association between psoas major morphology and functional status was assessed using the Oswestry disability index (ODI). RESULTS: Both female and male patients with DLSS had a higher PMI and lower muscle attenuation. PMI and muscle attenuation were inversely correlated with age in the DLSS group. After multivariable analyses, the PMI and psoas major muscle attenuation were positively correlated with patients\u2019 functional status. CONCLUSION: The PMI and muscle attenuation were positively correlated with functional status in patients with DLSS. These findings have important implications for physiotherapy programs of postoperative rehabilitation and conservative management of DLSS.<\/jats:p>","DOI":"10.3233\/bmr-230138","type":"journal-article","created":{"date-parts":[[2024,2,2]],"date-time":"2024-02-02T10:43:48Z","timestamp":1706870628000},"page":"921-928","source":"Crossref","is-referenced-by-count":3,"title":["Psoas muscle index and psoas muscle density are associated with functional status in patients with degenerative lumbar spinal stenosis"],"prefix":"10.1177","volume":"37","author":[{"given":"Xiaofei","family":"Hou","sequence":"first","affiliation":[{"name":"Department of Orthopaedics, Xuanwu Hospital, Capital Medical University, Beijing, China"},{"name":"China National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital, Capital Medical University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hailiang","family":"Hu","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Xuanwu Hospital, Capital Medical University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chao","family":"Kong","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Xuanwu Hospital, Capital Medical University, Beijing, China"},{"name":"China National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital, Capital Medical University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sitao","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Xuanwu Hospital, Capital Medical University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Xuanwu Hospital, 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