Unfused sternal body segments (sternebrae)

Last revised by Laura Gregory on 4 Jan 2023

Citation, DOI, disclosures and article data

Citation:

Ibrahim D, Gregory L, Weerakkody Y, Unfused sternal body segments (sternebrae). Reference article, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-58103

DOI:

https://doi.org/10.53347/rID-58103

Permalink:

https://radiopaedia.org/articles/58103

rID:

58103

Article created:

31 Jan 2018, Dalia Ibrahim ◉

Disclosures:

At the time the article was created Dalia Ibrahim had no recorded disclosures.

View Dalia Ibrahim's current disclosures

Last revised:

4 Jan 2023, Laura Gregory

Disclosures:

At the time the article was last revised Laura Gregory had no financial relationships to ineligible companies to disclose.

View Laura Gregory's current disclosures

Revisions:

3 times, by 3 contributors - see full revision history and disclosures

Systems:

Musculoskeletal

Sections:

Anatomy

Tags:

cases

Synonyms:

Segmented sternum
Non-fusion of sternal body segments

The sternal body forms from four sternebrae each developing from primary ossification centers. The first sternebra typically ossifies prenatally from a single ossification center, whilst the 2nd to 4th sternebrae most often ossify postnatally from multiple ossification center in each sternebra. Fusion of sternal body segments (sternebrae) is usually complete by 25 years of age. In some individuals non-fusion of all or some sternal body segments (sternebrae) can be seen in adults as a developmental variant.