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1. Four cases of metacarpophalangeal dislocations of the fingers are presented.2. The trapping elements of the little-finger dislocation are described.3. With the techique described, open reduction is easy and the reduction is stable and does not require transfixation of the joint.4. Dislocations of the fifth metacarpophalangeal joint, which cannot be reduced by closed means, can be reduced by open means by a volar approach that avoids blind transection of the fibrocartilaginous plate.