| Radioulnar synostosis | |
|---|---|
| Other names | Radioulnar fusion |
 | |
| Congenital radioulnar synostosis in a 7-year-old boy | |
| Specialty | Orthopaedics |
Radioulnar synostosis is a rare condition where there is an abnormal connection (synostosis) between the radius and ulna bones of the forearm.[1] This can be present at birth (congenital), when it is a result of a failure of the bones to form separately, or following an injury (post-traumatic).[2]
It typically causes restricted movement of the forearm, in particular rotation (pronation and supination), though is usually not painful unless it causes subluxation of the radial head.[1] It can be associated with dislocation of the radial head which leads to limited elbow extension.[2]
- ^ a b Wurapa, Raymond (7 January 2017). "Radioulnar Synostosis: Background, Pathophysiology, Etiology". eMedicine. Retrieved 2 March 2017.
- ^ a b "Congenital radio-ulnar synostosis | Genetic and Rare Diseases Information Center (GARD) – an NCATS Program". rarediseases.info.nih.gov. Retrieved 2 March 2017.