Abstract: An external fixation device that allows passive or active flexion/extension range of motion of the proximal interphalangeal joint. The fixation device assures maintenance of congruent proximal interphalangeal joint throughout the flexion/extension arc. The device attaches to orthopedically placed pins in the proximal phalanx and middle phalanx. Components placed between the pins include an adjustable hinge support that is centered over the axis of the joint for articulation of a hinge member. The hinge member allows distraction and/or compression along a longitudinal axis perpendicular to the hinge member. In addition, the device provides for dorsal/volar adjustability by use of alignment pins and an adjustment bolt placed perpendicular to the distraction/compression mechanism. The result is a fully adjustable external fixation device that allows 110 degrees of passive and active motion further allowing for the transient realignment of the subluxed joint providing joint congruency.