The formation of a dipole of edge dislocations in the consecutive interfaces of two neighboring square-shaped nanowires has been investigated from an energy-based calculation. Assuming the dipole is nucleated in the center of the matrix row between the two nanowires, the energy variation induced by the climbing of the dislocations in the interfaces (one by interface) has been first determined. The energy barrier and unstable equilibrium positions of the dipole have been thus characterized. Considering then the dislocations can also glide into the interfaces, the resulting supplementary gliding energy variation has been considered and the dislocation stable equilibrium positions in the interfaces have been determined, assuming they are distributed symmetrically with respect to the central point of the structure. The effect of the width of the matrix row between the two nanowires on the critical misfit strain required for the introduction of the dislocations in the nanowire interfaces has been finally analyzed.