Abstract
Isolated palmar dislocation of the fifth carpometacarpal joint is an uncommon injury and classified as radio-palmar or ulno-palmar according to the direction of displacement of the fifth metacarpal base. This very rare injury is often difficult to recognize. A careful neurologic assessment of the patient is a necessity, as well as obtaining proper radiographs of the hand. The purpose of this report is to present a patient with a pure isolated volar dislocation of the fifth carpometacarpal joint that was satisfactorily treated with closed reduction and casting. A review of the literature is presented.
Highlights
Volar dislocation of the fifth carpometacarpal joint is an uncommon injury
We report a case of volar dislocation of the base of fifth carpometacarpal joint satisfactorily treated with closed reduction and casting.The mechanism of this injury, clinical presentation and treatment options are discussed, with a review of the literature
Carpometacarpal (CMC) joint dislocations are relatively uncommon injury and they occur in less than 1% of hand injuries[7]
Summary
Volar dislocation of the fifth carpometacarpal joint is an uncommon injury. We report a case of volar dislocation of the base of fifth carpometacarpal joint satisfactorily treated with closed reduction and casting.The mechanism of this injury, clinical presentation and treatment options are discussed, with a review of the literature. After the wrist and the metacarpophalangeal joint of the little finger were immobilized in a cast for 6weeks. After this period of immobilization, the patient had been working with physical therapy and using his hand for daily activities. Six months following injury the patient had full range of movement of the little finger and normal grip strength, the radiographs showed the reduction to be maintained (Figure 3)
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