Objective To compare and analyse effects of three kinds of internal fixation methods using K wire, steel wire bundle up and mini - plate in the treatment of metacarpal and phalangeal fracture. Methods The clinical data of 101 metacarpal and phalangeal fractures in 83 cases were treated, in which 47 fractures in 35 cases of group A were treated by open reduction and internal fixation with Kirschner wire, 25 fractures in 22 cases of group B were treated by open reduction and internal fixation with steel wire bundle up, 29 fractures in 26 cases us...