Reverse Bennett fracture dislocation

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's fracture of the thumb. It is quite unstable due to unopposed extensor carpi ulnaris force on the fracture fragment, which causes migration and subluxation of the fragment.

Treatment and prognosis

This fracture frequently needs K-wire stabilisation to counteract the strong force of extensor carpi ulnaris.

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Article Information

rID: 46537
Section: Anatomy
Tags: refs, cases
Synonyms or Alternate Spellings:
  • Reverse Bennett's fracture
  • Reverse Bennett's fracture dislocation
  • Reverse Bennett fracture

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