Hyperkyphosis, colloquially called “dowager’s hump,” refers to excessive kyphotic, or anteriorly concave, curvature of the thoracic region of the spine. A kyphosis angle over 40° - the 95th percentile value for young adults - is currently used to define hyperkyphosis.
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Results and Conclusion. Scheuermann kyphosis is the most common cause of hyperkyphosis in adolescence.