Is osteopenia common in people with SMA type 3?
Yes, reduced bone density is a recognized concern for people with SMA type 3. Your son is not alone in experiencing this.
Research shows that people with SMA, particularly types 2 and 3, are at increased risk for weakened bones. One study found that 67.5% of children with Show Full Answer
Is osteopenia common in people with SMA type 3?
Yes, reduced bone density is a recognized concern for people with SMA type 3. Your son is not alone in experiencing this.
Research shows that people with SMA, particularly types 2 and 3, are at increased risk for weakened bones. One study found that 67.5% of children with SMA types 2 and 3 had low bone mineral density. While adults with type 3b (later onset) may be at somewhat less risk than those with earlier onset forms, bone health remains an important consideration.
Several factors contribute to this:
- Limited mobility and reduced weight-bearing activity
- Low vitamin D levels (found in nearly 40% of people with SMA in studies)
- The condition itself may directly affect bone health
- Reduced muscle use can weaken bones over time
A mySMAteam member's experience reflects what many face with bone density concerns in SMA type 3.
It's important for your son to have regular monitoring through DXA scans and blood tests to check vitamin D and calcium levels. His healthcare provider can recommend appropriate interventions, which might include supplements or other treatments to help maintain bone strength and prevent progression to osteoporosis.
March 27
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