Australian Family Physician
Australian Family Physician


Volume 40, Issue 6, June 2011

Bennett fracture dislocation Review and management

Craig Brownlie Daniel Anderson
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Bennett fracture dislocation is an intra-articular fracture of the base of the first metacarpal with resultant dislocation of the first carpometacarpal joint. The fracture is unstable, and with inadequate treatment leads to osteoarthritis, weakness and/or loss of function of the first carpometacarpal joint.
This article reviews the current literature on Bennett fracture and describes the clinical assessment and management of a Bennett fracture.
Bennett fractures usually result from falling on an extended or abducted thumb or an impact onto a clenched fist. The patient presents with pain and loss of function of the first carpometacarpal joint. Management can involve closed reduction, with or without percutaneous Kirschner wire fixation, or open reduction and internal fixation, with adequate reduction and the maintenance of reduction being the key to a successful outcome. Due to the difficulty of management it is recommended that patients be referred to a specialist hand surgeon.

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