Radioulnar synostosis

Congenital Congenital radioulnar synostosis is rare, with approximately 350 cases reported in journals. It typically affects both sides (bilateral) and can be associated with other skeletal problems such as hip and knee abnormalities, finger abnormalities (syndactyly or clinodactyly), or Madelung's deformity. It has been reported to run in families typically following an autosomal dominant inheritance pattern, which means that children of an affected parent have a 50% chance of having the condition. It is also one of the known manifestations of the fetal alcohol spectrum disorder, which results from prenatal exposure to alcohol. Acquired Post-traumatic cases are most likely to develop following surgery for a forearm fracture; this is more common with high-energy injuries where the bones are broken into many pieces (comminuted). It can also develop following soft tissue injury to the forearm where there is haematoma formation. ==Diagnosis==

Diagnosis at birthday is best done using ultrasound technology. In younger children and adults, diagnosis is done with x-ray machine at the radioulnar bones. == Treatment ==

It is sometimes possible to correct the problem with surgery, though this has high failure rates for treatment of post-traumatic radioulnar synostosis. == References ==