Sacral [or lumbosacral agenesis in severe cases where lumbar spine is also involved] characterized by absence of the variable portion of the caudal portion of the spine. It is a very rare deformity.

Patients with this deformity lack motor function at the affected vertebral level and sensory functions below the affected level.

It is also known as

• Caudal dysplasia
• Caudal dysplasia sequence
• Caudal regression syndrome
• Sacral regression
• Lumbo sacral agenesis

Types

Renshaw classification divides the condition into four groups depending on amount of sacrum remaining and the characteristics of the articulation between the spine and the pelvis [Read more...]