• Chaeun Mun, Keunyoung Sho, and Onyoo Kim.
• Department of Physical Medicine and Rehabilitation, National Rehabilitation Center, Seoul, Republic of Korea.
• Medicine (Baltimore). 2024 Sep 27; 103 (39): e39790e39790.

AbstractIndividuals with spinal cord injury (SCI) experience a notable decrease in bone mass below the level of injury. While studies have primarily focused on the acute phase with a small cohort, this study aimed to provide comprehensive insights into bone loss patterns over time. A total of 427 individuals with SCI who underwent dual-energy X-ray absorptiometry (DXA) testing at the Korea National Rehabilitation Center (2010-2021) were included and analyzed by categorizing the DXA results into 1-year intervals based on postinjury duration. Demographic characteristics (age, sex, body mass index, and alcohol/smoking history) and SCI-related factors (etiology, severity, extent of injury, motor score, and Korean Spinal Cord Independence Measure 3rd edition) were collected and analyzed. Linear mixed models and Bonferroni post hoc tests were performed to assess temporal changes in bone mass and linear regression analysis to assess the associations between possible risk factors and bone loss. DXA results revealed that substantial annual bone loss occurred in the total hip site up to 3 years postinjury and in the femoral neck site up to 2 years postinjury. Old age, women, and low body mass index were significant risk factors for bone loss in the SCI population. Additionally, during the chronic phase, lower Korean Spinal Cord Independence Measure 3rd edition scores were associated with low bone mass. Significant annual bone loss in the hip region persists for up to 3 years postinjury in individuals with SCI. While prioritizing the risk factors for osteoporosis commonly used in the general population, applying the SCIM score in the chronic phase may provide additional information on bone loss risk.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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