Can you have an extra bone in your spine to makecurve?

Extra spine bone. Some patients have indeed an extra vertebral body, esp in their lumbar spine. Occasionally one of the lumbar vertebral bodies can be part of the sacrum (sacralization), or can be partly in between with an incomplete bony formation (spondylolysis) or other abnormality (bertolotti syndrome). Sounds like a good evaluation with imaging studies would help you get the answer for your specific case. Thx!
Usually a partially . Usually a wedge shaped vertebra partially formed on 1 side causes the curve tho it could b an extra body partially formed on 1 side of the spine can cause a curve.