I searched Wrist Lock Injuries
Injuries to the Distal Radius:
Amazon has products to cure wrist injuries:
Search Web MD for Wrist Distal Radius:
Search Web MD "Child Distal Radius"
"The most common fracture that I see in children occurs at the distal radius - the main forearm bone near the thumb side of the wrist. When we fall forward, we instinctually put our arms out in front to protect our face. This sudden force often breaks this bone, either completely through or just cracked/dented. In most cases, this requires a cast."