<unk>  is an operation in orthopedics that involves the surgical implementation of implants for the purpose of repairing a bone, a concept that dates to the mid-nineteenth century and was made applicable for routine treatment in the mid-twentieth century. An<unk>  fixator may be made of stainless steel, titanium alloy, or cobalt-chrome alloy. or plastics. Types of<unk>  fixators include: * Plate and screws * Kirschner wires * Intramedullary nails
Internal fixation
External fixation
Arthrodesis
Percutaneous pinning
Vertebral fixation
Knee replacement
Narcosynthesis
Shoulder reduction