The rigidities of five fixation methods have been studied with the comminuted phalangeal fracture modle. Mechanical testing of compression,bending and torsion were performed for each fixation. Auseful reference on biomechanical properties of these five fixation methods have been provided.The lateral plating with six screws(LP6) seems to provide a more rigid fixation.If such lateral plating including the butterfly fragment is not practicable (e.g. in multi-fragmented fracture, which lacks adequate normal cortex for placement of screws) the 4K wire would be a satisfactory alternative .We hope that knowledge of rigidity of these fixation methods will have a positive influence on the surgeon's selection of fixation method.