During the recovery period, it is necessary to ensure the dog's nutritional balance, take measures to keep warm, and do not allow the dog to exercise strenuously. Older dogs usually have bone problems. At this time, we should give the dog more calcium, perform appropriate exercises and bask in the sun to help it absorb it.
Care Hacks
How to reattach a dog’s dislocated hind leg

If the dog's dislocation is only minor, it can heal on its own. No help is needed to reset it. Limit the dog's amount of exercise, and it will recover on its own in a few days. If it is a more serious dislocation, you need to take the dog to the hospital immediately and take X-rays to determine the dislocation and whether there are fractures, bone fractures, etc., and perform fixation or reduction surgery based on the situation.