synostosis
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Synostosis (; plural: synostoses) is fusion of two or more bones. It can be normal in puberty (e.g. fusion of the epiphyseal plate to become the epiphyseal line), or abnormal. When synostosis is abnormal it is a type of dysostosis. Examples of synostoses include: craniosynostosis – an abnormal fusion of two or more cranial bones; radioulnar synostosis – the abnormal fusion of the radius and ulna bones of the forearm; tarsal coalition – a failure to separately form all seven bones of the tarsus (the hind part of the foot) resulting in an amalgamation of two bones; and syndactyly – the abnor
Key facts
- Anatomy.Name
- Synostosis
- Anatomy.Image
- Radiology 1300594 Nevit.jpg
- Anatomy.Caption
- X-ray showing synostosis in the cervical spine
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Research
14,031 papers- Surgical Treatment of Post-Traumatic Radio-Ulnar Synostosis.Medicina (Kaunas, Lithuania) · 2024
- Congenital radioulnar synostosis: is prenatal diagnosis possible? - A case report.Taiwanese journal of obstetrics & gynecology · 2023
- Humeroradial Synostosis: An Updated Classification and Differential Diagnosis Based on Genetic Aetiology.Clinical genetics · 2025
- Posttraumatic proximal radioulnar synostosis: Current concepts on the clinical presentations, classifications, and open surgical approaches.Journal of ISAKOS : joint disorders & orthopaedic sports medicine · 2024
- [Congenital tarsal synostosis].Archives de pediatrie : organe officiel de la Societe francaise de pediatrie · 1996
via PubMed
Wikidata facts
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- Clinical significance
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Synostosis (; plural: synostoses) is fusion of two or more bones. It can be normal in puberty (e.g. fusion of the epiphyseal plate to become the epiphyseal line), or abnormal. When synostosis is abnormal it is a type of dysostosis. Examples of synostoses include: craniosynostosis – an abnormal fusion of two or more cranial bones; radioulnar synostosis – the abnormal fusion of the radius and ulna bones of the forearm; tarsal coalition – a failure to separately form all seven bones of the tarsus (the hind part of the foot) resulting in an amalgamation of two bones; and syndactyly – the abnormal fusion of neighboring digits. Synostosis within joints can cause ankylosis.
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