congenital radioulnar synostosis
Findings
No curated finding names congenital radioulnar synostosis yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Congenital radioulnar synostosis is a rare bone disorder that may be isolated or associated with other disorders and that is characterized by failure of segmentation of the radius and ulna during embryological development, causing limited rotational movements of the forearm, which may lead to difficulties with some activities of daily living.
Definition from the Mondo Disease Ontology (MONDO:0017985), read 2026-09-29. CC BY 4.0.
Features
13 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- Abnormal morphology of the radiusHPOHP:0002818
- Very frequent (80% to 99% of cases)
- Abnormal morphology of ulnaHPOHP:0040071
- Very frequent (80% to 99% of cases)
- Limited elbow movementHPOHP:0002996
- Very frequent (80% to 99% of cases)
- Limited pronation/supination of forearmHPOHP:0006394
- Very frequent (80% to 99% of cases)
- Radioulnar synostosisHPOHP:0002974
- Very frequent (80% to 99% of cases)
- Abnormality of the musculature of the upper armHPOHP:0001457
- Occasional (5% to 29% of cases)
Show the remaining 1
- Talipes equinovarusHPOHP:0001762
- Very rare (1% to 4% of cases)
Genes
2 genes
Germline variants in the gene encoding each protein, as classified by GenCC submitters, each in their own words. Limited, disputed and refuted submissions are listed too.
Where it sits
- A kind of
Other names
3 names
Resolves to: congenital radioulnar synostosis
- Also called
- radioulnar fusionradioulnar synostosisradioulnar synostosis (disease)