Final answer:
Buck's traction is applied to an extremity by cleaning the limb, attaching a traction device such as a foam boot, securing it, then attaching weights to apply a continuous pulling force while ensuring correct limb alignment.
Step-by-step explanation:
To apply Buck's traction, several steps must be taken to ensure proper application to the extremity. First, the skin should be thoroughly cleaned and dried. Next, a foam boot or a similar type of skin traction device is applied to the affected leg. The foam boot is wrapped around the extremity, and then tape, straps, or attached hooks are used to secure the boot in place. The key is to have the device snug but not too tight to prevent circulation problems. Following the application of the traction device, weights are attached using a rope and pulley system that hangs off the end of the bed. These weights apply a continuous pulling force to the extremity, which must be correctly aligned with the body to ensure effective traction without causing additional harm or discomfort to the patient.