Elbow external fixation brace is a mechanical device for bone external fixation technique, which is a composite system of percutaneous bone piercing pins in the upper arm and forearm, and attachment to bone through an extracorporeal mechanical device. Elbow external fixation brace can super joint fixation and help early joint movement, mainly divided into IIizarov external fixation brace (Ilizanov external fixation brace), unilateral external fixation brace, AO external fixation brace, Hoffmann II external fixation brace (Hoffmann II external fixation brace) and combined external fixation brace, which can be applied to all kinds of trauma around the elbow joint, subluxation, deformity correction and so on. 1. Ilizanov External Fixation Brace consists of hole ring, fine steel needle and full screw as the main components, equipped with articulator, with the functions of fixation, orthopedics and lengthening. 2. Unilateral external fixation frame, characterized by unilateral plane configuration and thick diameter half needle, easy to operate. It can be applied to trauma, fracture and deformity, but the eccentric force and stiffness of external fixation frame can not be regulated. 3.AO external fixation frame and Hoffman II external fixation frame, the structure is more similar, according to the need to form a unilateral, bilateral and triangular structure, but lack of orthopedic function. 4. Combined external fixation frame, flexible application, perfect function, can be adjusted according to need. Elbow joint external fixation frame belongs to clinical orthopedic surgery application, the specific choice needs to be combined with the type of fracture, and the installation needs to be carried out aseptically under the operation of professional physicians. Patients should prevent pin tract infection after surgery and take medication as prescribed by the doctor.