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Correlation of Modic Changes with Sagittal Lumbopelvic Parameters.
Xiaoping Mu1, Chengqiang Yu1, Seong Woong Kim2
1Department of Spine Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, Guangxi, People's Republic of China.
Modic changes (MCs) impact spinal alignment. Severe MCs and multi-segmental involvement correlate with lumbar sagittal imbalance, affecting lordosis, sacral slope, and pelvic incidence.
Area of Science:
- Spinal imaging and biomechanics.
- Degenerative disc disease research.
Background:
- Modic changes (MCs) are common findings on lumbar spine MRI.
- Understanding MCs' impact on spinal alignment is crucial for clinical management.
Purpose of the Study:
- To analyze lumbopelvic sagittal parameters in relation to Modic change types.
- To investigate correlations between MC size, involved lumbar levels, and lumbopelvic parameters.
Main Methods:
- Retrospective analysis of 263 adult subjects with MCs.
- Evaluation of lumbar x-rays and MRI for MC types, sizes, and lumbar levels.
- Assessment of lumbopelvic sagittal parameters including lumbar lordosis, sacral slope, and pelvic incidence.
Main Results:
- MC grade 1 showed significantly smaller lumbar lordosis, sacral slope, and pelvic incidence compared to grades 2 and 3.
- Progressive MC severity correlated with decreased lumbopelvic sagittal parameters.
- Multi-segmental MCs (≥3 levels) were associated with increased PI-LL and decreased LL, SS, and PI.
Conclusions:
- Modic change grade 1, severe MCs, and multi-segmental MCs are significantly linked to lumbar sagittal imbalance.
- These findings highlight the association between degenerative changes and spinal alignment.
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