- Symbrachydactyly is apparent at birth, and may also be visible before birth by ultrasound.
- In most cases, the underlying muscles, nerves, tendons, ligaments and bones of your child’s hand will also be affected. Your doctor will use x-rays to look more closely at the underlying structure of your baby’s fingers and determine a course of treatment.
- If there are any other abnormalities, other X-rays or tests may be needed.
Symbrachydactyly is often confused with a hand disorder called constriction ring syndrome (also called amniotic band syndrome), but the two are different. The main difference between the two is that in symbrachydactyly the underlying structures of the hand (such as the muscles, nerves and bones) are usually malformed, while in constriction ring syndrome they aren’t.