- Thoracolumbar kyphosis is the most common sagittal plane deformity among achondroplasic dwarfs.
- Radiographs show anterior wedging at the apex of the deformity.
- Clinical features
- The kyphosis is generally evident at birth, progresses as the child begins to sit
- Resolves in approximately 70% of cases with ambulation at 12-18 months.
- Progression can lead to a focal kyphosis and possible neural compression, which may be masked by the lumbar stenosis associated with achondroplasia.
- Treatment
- Anterior and posterior fusion
- Indication
- Progressive deformity
- Thoracolumbar kyphosis > 50° at age > 5 years
- Neural compromise attributed to compression in the kyphotic region.
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