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Sagittal profiles of the spine
Clinical Orthopaedics and Related Research
|September 1, 1986
Summary
This study establishes reference standards for spinal curvature in growing children. Results show spinal curves balance each other, with sex differences diminishing by maturity.
Area of Science:
- Orthopedics
- Radiology
- Biomedical Engineering
Background:
- Understanding normal spinal alignment in the sagittal plane is crucial for identifying deviations.
- Existing measurement methods for spinal curvature may not fully capture complex anatomical relationships.
Purpose of the Study:
- To establish normative standards for thoracic kyphosis, lumbosacral lordosis, and sacral inclination in a growing population.
- To compare traditional Cobb's method with novel indices for measuring spinal curves.
- To investigate sex-based differences and developmental changes in spinal sagittal alignment.
Main Methods:
- Analysis of standardized radiographs from 670 healthy subjects.
- Application of Cobb's method for spinal deformity measurement.
- Development and utilization of new indices for kyphosis and lordosis, considering curve length and width.
Main Results:
- Established reference standards for thoracic kyphosis, lumbosacral lordosis, and sacral inclination.
- Found comparable thoracic kyphosis between boys and girls.
- Observed initial higher lordosis and sacral inclination in girls, which became similar to boys by maturity.
- Identified significant correlations between kyphosis and lordosis, and lordosis and sacral inclination, suggesting a balancing mechanism.
Conclusions:
- The study provides valuable reference data for assessing sagittal spinal alignment in growing individuals.
- New measurement indices offer a potentially more comprehensive assessment of spinal curves.
- The findings highlight the interconnectedness and balancing nature of spinal curvatures in the growing spine.