Clinically, the clavicle hook plate is used for the indications of acromioclavicular dislocation and distal clavicle fracture. Under brachial plexus anesthesia, a transverse incision is made centering on the dislocation of the acromioclavicular joint or the distal clavicle fracture. After the skin is cut, the subcutaneous tissue and the attachment muscle of the clavicle are bluntly peeled away to fully expose the acromioclavicular joint or the distal clavicle fracture end, and the tissue around the broken end or the acromioclavicular joint is cleared so that the operative area becomes clear. Then, a hooked plate of appropriate length is selected, and the hooked plate is inserted into the acromioclavicular joint gap and pressed against the clavicle for fixation.