Sprains and Strains in Children Strains, sprains, and bruises make up the majority of sports injuries. Treatment for a strain or sprain depends on the child's age and the extent of the injury. Nursemaid's Elbow Nursemaid's elbow occurs when the radius—one of the bones in the forearm—slips out of place from where it normally attaches to the elbow joint. Sprains, Strains, Breaks: What’s the Difference? If you've sprained your ankle, you know what pain is. But maybe that "sprain" was a "strain" or possibly even a "break." The amount of pain in each case can be virtually equal. Avoiding Joint Injuries Common injuries include a twisted ankle, sprained wrist, overextended elbow and damaged knee ligaments. Fortunately, you can take steps to help prevent joint damage. Tennis Elbow Tennis elbow is a repetitive stress injury of the elbow that occurs when the muscles and tendons in the elbow area are torn or damaged.