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An analysis of normal back shape measured by ISIS scanning.
A J Carr1, R J Jefferson, A R Turner-Smith
1Nuffield Orthopaedic Centre, Headington, Oxford, England.
Spine
|June 1, 1991
Summary
Back shape in children and adults showed no significant differences using ISIS scanning. However, adults exhibited greater kyphosis angles compared to children, indicating a normal age-related spinal change.
Area of Science:
- Orthopedics
- Biomedical Engineering
- Radiology
Background:
- Understanding normal spinal morphology is crucial for diagnosing conditions like scoliosis.
- The ISIS (Isis) system offers a non-invasive method for assessing back shape parameters.
Purpose of the Study:
- To compare spinal (back) shape parameters between school-aged children and normal adults using the ISIS system.
- To identify age-related differences in back shape, specifically kyphosis angles.
Main Methods:
- ISIS scanning was performed on 271 school children (10-16 years) and 72 adults (21-59 years).
- Subjects with any scoliosis were excluded to ensure a normal cohort.
- Characteristic ISIS parameters of back shape were analyzed.
Main Results:
- No statistically significant differences in back shape parameters were found between sexes or age groups in children.
- Adult back shape was comparable to children's, with the notable exception of significantly greater kyphosis angles in adults.
- This suggests kyphosis angle increases with age in a normal population.
Conclusions:
- The ISIS system can characterize normal back shape across different age groups.
- Adults naturally exhibit increased kyphosis compared to adolescents, a finding not indicative of pathology in this context.