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Characteristics Associated with Bone Loss after Spinal Cord Injury: Implications for Hip Region Vulnerability

 Sora Han  ;  Sungjae Shin  ;  Onyoo Kim  ;  Namki Hong 
 Endocrinology and Metabolism (대한내분비학회지), Vol.38(5) : 578-587, 2023-10 
Journal Title
Endocrinology and Metabolism(대한내분비학회지)
Issue Date
Absorptiometry, photon ; Bone density ; Femur neck ; Osteoporosis ; Spinal cord injuries
Background: In individuals with spinal cord injury (SCI), bone loss progresses rapidly to the area below the level of injury, leading to an increased risk of fracture. However, there are limited data regarding SCI-relevant characteristics for bone loss and the degree of bone loss in individuals with SCI compared with that in non-SCI community-dwelling adults. Methods: Data from men with SCI who underwent dual-energy X-ray absorptiometry at the National Rehabilitation Center (2008 to 2020) between 12 and 36 months after injury were collected and analyzed. Community-dwelling men were matched 1:1 for age, height, and weight as the control group, using data from the Korea National Health and Nutrition Examination Survey (KNHANES, 2008 to 2011). Results: A comparison of the SCI and the matched control group revealed significantly lower hip region T-scores in the SCI group, whereas the lumbar spine T-score did not differ between groups. Among the 113 men with SCI, the paraplegia group exhibited significantly higher Z-scores of the hip region than the tetraplegia group. Participants with motor-incomplete SCI showed relatively preserved Z-scores of the hip region compared to those of the lumbar region. Moreover, in participants with SCI, the percentage of skeletal muscle displayed a moderate positive correlation with femoral neck Z-scores. Conclusion: Men with SCI exhibited significantly lower bone mineral density of the hip region than community-dwelling men. Paraplegia rather than tetraplegia, and motor incompleteness rather than motor completeness were protective factors in the hip region. Caution for loss of skeletal muscle mass or increased adiposity is also required. Copyright © 2023 Korean Endocrine Society.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Hong, Nam Ki(홍남기) ORCID logo https://orcid.org/0000-0002-8246-1956
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