Causes Most dislocations are caused by a blow, fall, or other trauma.
Seizures can also lead to dislocations.
If a joint is over stressed, the bones that meet at that joint may get disconnected, or dislocated. When this happens, there's usually a torn joint capsule and torn ligaments, and often, nerve injury. It is hard sometimes to tell a dislocated bone from a broken bone . Both are emergency situations. The basic first aid steps are the same for both.