alexa A longitudinal study of congruent sagittal spinal alignment in an adult cohort.
Neurology

Neurology

Journal of Spine

Author(s): Kobayashi T, Atsuta Y, Matsuno T, Takeda N

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Abstract STUDY DESIGN: A 10+-year longitudinal study of 100 adult volunteers. OBJECTIVES: To identify congruent lumbar lordosis in association with other sagittal spinopelvic parameters. SUMMARY OF BACKGROUND DATA: The aging spine poses difficult problems in determining appropriate lumbar lordosis. The concept of congruent spinal alignment is preferred over that of normal spinal alignment, yet the definition of sagittal spinal congruity in elderly population has not been well documented. METHODS: A population-based recruitment of adult volunteers and follow-up of 10+ years was conducted. A total of 100 healthy volunteers with baseline age of 50+ years were subjected to standing entire spine radiographs. Radiologic parameters included lumbar lordosis, sacral inclination, sagittal spinal balance, and other sagittal alignments. RESULTS: Average age of the subjects was 62.0 years at baseline and 73.9 years at follow-up. Lumbar lordosis with <5 degrees change during observation was defined as stable lumbar lordosis (n = 34). Regression analyses of the baseline parameters revealed that sacral inclination was the sole predictor of stable lumbar lordosis (lumbar lordosis = 0.8 * sacral inclination, r = 0.94, P < 0.0001). Baseline lumbopelvic congruity, determined as 0.7 This article was published in Spine (Phila Pa 1976) and referenced in Journal of Spine

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