External fixators are highly versatile orthopedic devices. They can replace plates and intramedullary nails in many situations. They are inexpensive, easy to apply, and the surgical time required to install them is often much less than what is needed to place a plate or an intramedullary nail. These devices have proven to be very effective to counteract the mechanical forces produced in the focus of the fracture. This article aims to describe five cases that illustrate the usefulness of this device in orthopedic surgery of small species.