Ulna olecroanon Locking Plate, proximal ulna and radius locking plate is suitable for fixation of olecranon fractures.
Features and advantages
1.They are fixed on the dorsal side of the fracture, which preclude the possibility of dorsal fracture separation during movement. Since the dorsal side of the ulna is a tension side, the bone plate placed on the dorsal side can act as a tension band at the proximal end of the ulna to some extent.
2.There is no need for External Fixation after surgery, and functional exercise begins immediately after the surgical response disappears. Even if the articular surface is not smooth, early activity can also make the callus form a smooth articular surface during growth, which minimizes the possibility of traumatic arthritis. The internal fixation method of olecranon anatomical plate for the treatment of olecranon fracture is based on the principle of AO series internal fixation plate, which has a strong stress effect on the bone. It has a combination of strong fixation and elastic fixation, that is, radial compression fixation at the distal end of the ulna and axial compression fixation at the proximal end of the ulna. The elastic internal fixation of the proximal ulna can cushion and reduce the interference of the orthopedic plates on the physiological stress conduction of the fracture. It can transfer the axial stress load of bone to the maximum extent, so that the fracture end after the olecranon anatomical plate fixation still maintains the original biomechanical properties of bone, and the stress interference intensity of bone is minimal. The proximal screw and the distal screw are orthogonal to each other, and the proximal screw crosses the fracture line and enters the farthest bone mass. Of course, this screw should not be too long, otherwise it is easy to collide with the screw hitting the coronary process. Exposure of the ulna should protect periosteum and muscle attachment. After shaping or cutting the proximal orthopedic Bone Screw hole, the plate is placed over the triceps attachment with minimal problems.
Medical Tips
The forearm bones consist of the ulna and radius. The olecranon fossa at the proximal end of the ulna and the humeral trochlea form the brachioulnar joint, the radial head and the humeral head form the brachioulnar joint, the proximal end of the ulna and the radius form the upper joint of the radioulnar with each other, the lower end of the ulna is the ulna head, which forms a joint at the proximal carpal bone with the help of triangular cartilage. The lower end of the radius is enlarged, and the ulna head, together with the proximal carpal bone, forms the radiocarpal joint. The lower ends of the radioulnar bones form the distal radioulnar joint.
