Reverse Bennett fracture-dislocation
Citation, DOI, disclosures and article data
Citation:
Jahangiri A, Ranchod A, Lustosa L, et al. Reverse Bennett fracture-dislocation. Reference article, Radiopaedia.org (Accessed on 14 Dec 2024) https://doi.org/10.53347/rID-46537
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rID:
46537
Article created:
7 Jul 2016,
Alborz Jahangiri
Disclosures:
At the time the article was created Alborz Jahangiri had no recorded disclosures.
View Alborz Jahangiri's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Ashesh Ishwarlal Ranchod had no financial relationships to ineligible companies to disclose.
View Ashesh Ishwarlal Ranchod's current disclosures
Revisions:
14 times, by
11 contributors -
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Synonyms:
- Tenneb
- Ulnar Bennet
- Reversed Bennet
- Reverse Bennett's fracture
- Reverse Bennett's fracture dislocation
- Reverse Bennett fracture
A reverse Bennett fracture-dislocation is a fracture-dislocation of the base of the 5th metacarpal bone. It is pathologically and radiographically analogous to the Bennett fracture of the thumb. It is quite unstable due to unopposed extensor carpi ulnaris pull on the fracture fragment, which causes migration and subluxation of the fragment. It is the most common base of metacarpal fracture 3.
Treatment and prognosis
This fracture frequently needs K-wire stabilization to counteract the strong force of the extensor carpi ulnaris.
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References
- 1. Bloom JM, Hammert WC. Evidence-based medicine: Metacarpal fractures. Plast. Reconstr. Surg. 2016;133 (5): 1252-60. doi:10.1097/PRS.0000000000000095 - Pubmed citation
- 2. Maruyama T, Saha S, Mongiano DO et-al. Metacarpal fracture fixation with absorbable polyglycolide rods and stainless steel K wires: a biomechanical comparison. J. Biomed. Mater. Res. 1996;33 (1): 9-12. Pubmed citation
- 3. Diaz-Garcia R, Waljee JF. Current management of metacarpal fractures. (2013) Hand clinics. 29 (4): 507-18. doi:10.1016/j.hcl.2013.09.004 - Pubmed
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