Background: Bilateral traumatic amputation and limb-threatening injury of the lower extremities is more challenging than the unilateral amputation. Successful replantation of both lower extremities has been reported previously. However, orthotopic implantations may not be possible when amputation of both lower limbs with different levels of section and degrees of damage to surrounding tissues occurs. It was reported that the crossover replanted foot in combination with prosthetic limb is better than 2 artificial limbs. Hence, crossover replantation should be considered when anatomic replantation of both lower extremities is not possible as a result of bilateral total or subtotal amputation. To our knowledge, there are few reports about the crossover replantation of the lower extremity in the literature.