Body position alters kyphosis angle: comparison of supine MRI and prone full-length spine CT scout view in osteoporotic thoracolumbar fractures - Summary - MDSpire
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Body position alters kyphosis angle: comparison of supine MRI and prone full-length spine CT scout view in osteoporotic thoracolumbar fractures
To compare the degree of kyphosis among patients with old thoracolumbar fracture kyphosis (OTFK) in various positions and to assess kyphosis flexibility.
Key Findings:
Mean standing LKCA was 39.58 ± 9.00°; LKCA in prone FLS-CT was 29.61 ± 6.96°; LKCA in supine MRI averaged 28.32 ± 5.91°.
Kyphosis flexibility values were 24.45% ± 10.86% for prone FLS-CT and 27.35% ± 10.16% for the mean of the three MRI planes.
Significant reduction in LKCA in prone and supine positions compared to standing (p < 0.001).
No significant differences between prone FLS-CT and supine MRI measurements (p > 0.05).
Interobserver reliability was excellent (ICC 0.985 to 0.992).
Interpretation:
Kyphosis severity is significantly reduced in recumbent positions, and both prone FLS-CT and supine MRI provide comparable estimates for assessing kyphosis flexibility, which is crucial for preoperative planning.
Limitations:
Retrospective design may introduce selection bias.
Small sample size limits generalizability.
Retrospective nature may affect data reliability.
Conclusion:
Prone FLS-CT and supine MRI are clinically comparable for preoperative assessment of kyphosis flexibility in OTFK patients, highlighting their utility in surgical planning.
