{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,6]],"date-time":"2026-11-06T15:26:24Z","timestamp":1793978784008,"version":"4.8.0"},"reference-count":45,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,8,7]]},"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVE<\/jats:title>\n                    <jats:p>The number of patients with a rigid spine (e.g., due to ankylosing spondylitis, diffuse idiopathic skeletal hyperostosis, or ossification of the posterior longitudinal ligament) requiring surgery after spinal cord injury (SCI) is rising. However, the impact of an underlying rigid spine on perioperative outcomes remains unclear. Therefore, the aim of this study was to compare the characteristics and perioperative outcomes of patients with rigid spine with that of patients without rigid spine after SCI due to a low-energy fall.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>This retrospective analysis of prospectively collected data included a cohort of 261 adults who underwent surgery for acute SCI due to a low-energy fall at a single institution (April 2010\u2013May 2024). Radiological studies were used to identify the presence or absence of an underlying rigid spine. Multivariable analysis was performed to determine associations between the presence of rigid spine and perioperative outcomes (neurological improvement, complications, and hospital length of stay [LOS]) while accounting for covariables.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>Although the baseline SCI severity was similar, patients with rigid spine (n = 78) were older, had higher BMI, more comorbidities, and a longer surgery duration than those without rigid spine. In addition, patients with rigid spine had increased LOS (mean 39.2 \u00b1 36.2 vs 26.4 \u00b1 17.1, p = 0.004), rate of pneumonia (28.2% vs 13.7%, p = 0.005), and rate of urinary tract infection (30.8% vs 15.8%, p = 0.006). Multivariable analysis confirmed that having a rigid spine was associated with increased LOS and increased likelihood of pneumonia.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>Following SCI due to a low-energy fall, patients with rigid spine had an increased hospital LOS and complication rate after surgery. Clinicians should rapidly identify the presence of rigid spine in patients after SCI, considering the higher risk of poor perioperative outcomes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/2026.3.spine251199","type":"journal-article","created":{"date-parts":[[2026,8,5]],"date-time":"2026-08-05T00:01:36Z","timestamp":1785888096000},"page":"504-512","source":"Crossref","is-referenced-by-count":0,"title":["Early perioperative outcomes after spinal cord injury due to low-energy fall: a retrospective comparative study of 78 patients with rigid versus 183 patients with nonrigid spine"],"prefix":"10.3171","volume":"45","author":[{"given":"Alexander","family":"Zorzi","sequence":"first","affiliation":[{"name":"Faculty of Medicine, University of Montr\u00e9al;"},{"name":"Research Department of Orthopeadics, Savoirs Partag\u00e9s Research Center of the CIUSSS NIM, Montr\u00e9al;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andr\u00e9ane","family":"Richard-Denis","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Montr\u00e9al;"},{"name":"Research Department of Orthopeadics, Savoirs Partag\u00e9s Research Center of the CIUSSS NIM, Montr\u00e9al;"},{"name":"Physiatry Department, H\u00f4pital du Sacr\u00e9-Coeur, Montr\u00e9al, Qu\u00e9bec, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manuel Jaramillo","family":"Jim\u00e9nez","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Montr\u00e9al;"},{"name":"Faculty of Medicine, University of Montr\u00e9al;"},{"name":"Orthopedic Department, H\u00f4pital du Sacr\u00e9-Coeur, Montr\u00e9al; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jean-Marc","family":"Mac-Thiong","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Montr\u00e9al;"},{"name":"Faculty of Medicine, University of Montr\u00e9al;"},{"name":"Orthopedic Department, H\u00f4pital du Sacr\u00e9-Coeur, Montr\u00e9al; and"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"10","key":"b1","series-title":"BMJ Open","first-page":"e075049","article-title":"Global, regional and national burden of traumatic brain injury and spinal cord injury, 1990-2019: a systematic analysis for the Global Burden of Disease Study 2019","volume":"13","author":"Guan B","year":"2023","unstructured":"Guan B, Anderson DB, Chen L, Feng S, Zhou H. Global, regional and national burden of traumatic brain injury and spinal cord injury, 1990-2019: a systematic analysis for the Global Burden of Disease Study 2019. BMJ Open. 2023;13(10):e075049. doi:10.1136\/bmjopen-2023-075049"},{"key":"b2","series-title":"Brain Spine","first-page":"102811","article-title":"Rigid spine injuries - a comprehensive review on diagnostic and therapeutic challenges","volume":"4","author":"Schaefer RO","year":"2024","unstructured":"Schaefer RO, Rutsch N, Schnake KJ,  Rigid spine injuries - a comprehensive review on diagnostic and therapeutic challenges. Brain Spine. 2024;4:102811. doi:10.1016\/j.bas.2024.102811"},{"key":"b3","series-title":"ISRN Rheumatol","first-page":"150484","article-title":"Management of acute spinal fractures in ankylosing spondylitis","volume":"2011","author":"Chaudhary SB","year":"2011","unstructured":"Chaudhary SB, Hullinger H, Vives MJ. Management of acute spinal fractures in ankylosing spondylitis. 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J Am Acad Orthop Surg. 2021;29(24):1044\u20131051. doi:10.5435\/JAAOS-D-20-01344"},{"issue":"17","key":"b8","series-title":"J Am Acad Orthop Surg","first-page":"820","article-title":"Ossification of the posterior longitudinal ligament: pathophysiology, diagnosis, and management","volume":"30","author":"Le HV","year":"2022","unstructured":"Le HV, Wick JB, Van BW, Klineberg EO. Ossification of the posterior longitudinal ligament: pathophysiology, diagnosis, and management. 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Radiology. 1976;119(3):559\u2013568. doi:10.1148\/119.3.559"},{"issue":"2","key":"b14","series-title":"Global Spine J","first-page":"321","article-title":"Prognosis of cervical diffuse idiopathic skeletal hyperostosis-related spine injuries in elderly patients: analyses of both fracture and spinal cord injury without fracture","volume":"15","author":"Segi N","year":"2025","unstructured":"Segi N, Nakashima H, Machino M,  Prognosis of cervical diffuse idiopathic skeletal hyperostosis-related spine injuries in elderly patients: analyses of both fracture and spinal cord injury without fracture. 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